Marine Holding Tanks
Marine Waste Holding Tanks
Discover our exceptional marine holding tanks that are meticulously crafted from FDA-approved virgin polyethylene plastic resins, guaranteeing the highest quality. These tanks are specifically designed for a variety of marine applications, including black water holding, graywater storage, RV usage, ballast tanks, and more. With seamless construction and a single-piece design, our boat water tanks ensure complete leak protection while also meeting Coast Guard requirements.
We take pride in making sure these customized, robust tanks match your desired dimensions and fitting locations perfectly. Spin-weld fittings are used to ensure a secure connection for your marine holding tank.
We carry Marine Fresh Water Tanks too! See: Marine Water Tanks
Our friendly staff is here to help you get the exact product you need!
Custom Marine Holding Tanks
Experience the exceptional quality of our marine holding tanks, meticulously crafted using FDA-approved, virgin polyethylene plastic resin. These tanks are specifically designed to efficiently store waste water in various marine vessels, including sailboats, yachts, and deep-sea fishing boats. With a seamless one-piece construction, our marine water tanks offer unrivaled durability and practicality.
Say goodbye to cracking and weakening over time, as our plastic marine tanks are engineered to withstand the rigors of marine environments without compromising their integrity. Featuring female NPT openings in a consistent position on one end, our tanks are highly versatile for marine plumbing applications.
We prioritize tank performance, and our marine waste holding tanks are no exception. Each tank is equipped with spin weld fittings, ensuring a secure fit and peace of mind. At One Clarion, we are dedicated to providing you with the highest quality marine tanks available on the market.
Our friendly staff is here to help you get the exact product you need!
Custom Marine Holding Tanks
Bottom Dump Waste Tanks
| Part No. | Capacity | Length | Width | Depth | Drawings |
| H-220 | 11 gallons | 64 | 6 | 8.25 | Drawing (pdf) |
| H-263 | 11 gallons | 74 | 5.75 | 8.75 | Drawing (pdf) |
| H-249 | 14 gallons | 31.5 | 17 | 8.75 | Drawing (pdf) |
| H-229 | 15 gallons | 37 | 16 | 7.5 | Drawing (pdf) |
| H-572 | 24 gallons | 73.75 | 11.5 | 9 | Drawing (pdf) |
| H-510 | 25 gallons | 46 | 15 | 9.5 | Ask for details |
| H-224 | 25 gallons | 75.75 | 8 | 13 | Drawing (pdf) |
| H-223 | 27 gallons | 76 | 16 | 13 | Drawing (pdf) |
| H-251 | 35 gallons | 52 | 24 | 8.5 | Drawing (pdf) |
| H-286 | 35 gallons | 76 | 11 | 12.75 | Drawing (pdf) |
| H-277 | 38 gallons | 28.25 | 23.25 | 14 | Drawing (pdf) |
| H-280 | 40 gallons | 27.5 | 23.5 | 14 | Drawing (pdf) |
| H-317 | 40 gallons | 79 | 11 | 13 | Drawing (pdf) |
| H-312 | 40 gallons | 90 | 33.5 | 12 | Drawing (pdf) |
| H-276 | 43 gallons | 84 | 11 | 13 | Drawing (pdf) |
| H-418 | 43 gallons | 85 | 17.5 | 9.75 | Drawing (pdf) |
| H-432 | 44 gallons | 65 | 15.25 | 12 | Drawing (pdf) |
| H-354 | 44 gallons | 78 | 12.5 | 13 | Drawing (pdf) |
| H-359 | 47 gallons | 68 | 27.25 | 7.5 | Drawing (pdf) |
| H-311 | 48 gallons | 80 | 20 | 12 | Drawing (pdf) |
| H-437 | 51 gallons | 85 | 17.5 | 11.25 | Drawing (pdf) |
| H-226 | 52 gallons | 84 | 13.25 | 13 | Drawing (pdf) |
| H-316 | 55 gallons | 79 | 15.5 | 13 | Drawing (pdf) |
| H-281 | 59 gallons | 42 | 27.25 | 13 | Drawing (pdf) |
| H-375 | 60 gallons | 79.75 | 16.25 | 13.25 | Drawing (pdf) |
| H-275 | 62 gallons | 84 | 15.5 | 13 | Drawing (pdf) |
| H-419 | 63 gallons | 85 | 24.75 | 9.75 | Drawing (pdf) |
| H-287 | 65 gallons | 76 | 20 | 12.75 | Drawing (pdf) |
| H-353 | 66 gallons | 78 | 18.5 | 13 | Drawing (pdf) |
| H-304 | 66 gallons | 85 | 21 | 11.75 | Drawing (pdf) |
| H-433 | 70 gallons | 65 | 22.75 | 12 | Drawing (pdf) |
| H-227 | 72 gallons | 84.25 | 18 | 13 | Drawing (pdf) |
| H-436 | 73 gallons | 85 | 24.75 | 11.25 | Drawing (pdf) |
| H-362 | 90 gallons | 79.75 | 24 | 13.25 | Drawing (pdf) |
| H-422 | 110 gallons | 63 | 24.75 | 17.75 | Ask for details |
Custom Marine Holding Tanks
End Dump Holding Tanks
| Part No. | Capacity | Length | Width | Depth | Drawings |
| H-545 | 6 gallons | 38.375 | 15 | 3.5 | Ask for details |
| H-273 | 8 gallons | 15 | 17 | 8 | Drawing (pdf) |
| H-135 | 8 gallons | 22.75 | 12.75 | 7.5 | Drawing (pdf) |
| H-128 | 9 gallons | 32.5 | 15 | 6.5 | Drawing (pdf) |
| H-256 | 9 gallons | 35 | 11.75 | 6 | Drawing (pdf) |
| H-491 | 9 gallons | 82 | 6 | 6.75 | Ask for details |
| H-565 | 9 gallons | 84.25 | 8 | 8.5 | Drawing (pdf) |
| H-380 | 10 gallons | 43.5 | 15 | 5.75 | Drawing (pdf) |
| H-384 | 10 gallons | 43.5 | 15 | 5.75 | Drawing (pdf) |
| H-325 | 10 gallons | 61.5 | 8 | 8.5 | Drawing (pdf) |
| H-493 | 10 gallons | 68 | 8 | 7.625 | Drawing (pdf) |
| H-219S | 10 gallons | 70 | 5.5 | 15 | Drawing (pdf) |
| H-219L | 12 gallons | 88 | 5.5 | 15 | Drawing (pdf) |
| H-131 | 15 gallons | 58 | 14.25 | 6 | Drawing (pdf) |
| H-379 | 16 gallons | 56 | 10 | 8.5 | Drawing (pdf) |
| H-307 | 16 gallons | 65 | 20 | 4.5 | Drawing (pdf) |
| H-253 | 17 gallons | 30 | 20 | 8 | Drawing (pdf) |
| H-566 | 18 gallons | 30 | 19.875 | 8.75 | Drawing (pdf) |
| H-244 | 19 gallons | 54 | 22 | 6.5 | Drawing (pdf) |
| H-567 | 19 gallons | 76 | 16 | 5 | Drawing (pdf) |
| H-96 | 20 gallons | 26 | 19.75 | 11 | Drawing (pdf) |
| H-448 | 20 gallons | 42 | 29.5 | 5.25 | Drawing (pdf) |
| H-502 | 20 gallons | 48 | 16 | 8 | Drawing (pdf) |
| H-424 | 20 gallons | 61 | 14.75 | 6.5 | Drawing (pdf) |
| H-551 | 21 gallons | 32 | 17 | 10.75 | Drawing (pdf) |
| H-571 | 21 gallons | 61 | 11 | 9 | Drawing (pdf) |
| H-454 | 21 gallons | 95 | 13.75 | 7.5 | Drawing (pdf) |
| H-294 | 22 gallons | 40 | 20 | 8 | Drawing (pdf) |
| H-272 | 23 gallons | 38 | 25.5 | 6.5 | Drawing (pdf) |
| H-298 | 23 gallons | 43 | 10.5 | 13 | Drawing (pdf) |
| H-447 | 23 gallons | 68 | 20 | 5.25 | Drawing (pdf) |
| H-103 | 24 gallons | 76 | 11 | 8.5 | Drawing (pdf) |
| H-521 | 24 gallons | 93.25 | 13.625 | 7.1875 | Ask for details |
| H-278 | 25 gallons | 38 | 26 | 7.5 | Drawing (pdf) |
| H-295 | 25 gallons | 42 | 20 | 8 | Drawing (pdf) |
| H-453S | 25 gallons | 82 | 13 | 7.5 | Drawing (pdf) |
| H-560 | 26 gallons | 73.75 | 12 | 9 | Drawing (pdf) |
| H-444 | 26 gallons | 81.5 | 14.5 | 6.25 | Drawing (pdf) |
| H-21 | 27 gallons | 44 | 13.25 | 12.5 | Drawing (pdf) |
| H-356 | 27 gallons | 82 | 16 | 6 | Drawing (pdf) |
| H-453L | 27 gallons | 94 | 13 | 7.5 | Drawing (pdf) |
| H-558 | 28 gallons | 55 | 13.625 | 9.875 | Drawing (pdf) |
| H-217 | 29 gallons | 74.25 | 21.25 | 6.5 | Drawing (pdf) |
| H-270 | 30 gallons | 50.5 | 20 | 8 | Drawing (pdf) |
| H-449 | 30 gallons | 54 | 43.75 | 5.75 | Drawing (pdf) |
| H-476 | 30 gallons | 90 | 16 | 6 | Ask for details |
| H-237 | 30 gallons | 98 | 16 | 6 | Drawing (pdf) |
| H-562 | 31 gallons | 58 | 22 | 8 | Drawing (pdf) |
| H-67 | 32 gallons | 36 | 36 | 7.25 | Drawing (pdf) |
| H-531 | 32 gallons | 96 | 14.5 | 8 | Drawing (pdf) |
| H-370 | 34 gallons | 104 | 10 | 9 | Drawing (pdf) |
| H-420 | 35 gallons | 104 | 17.25 | 6 | Drawing (pdf) |
| H-305 | 35 gallons | 47 | 26.5 | 9 | Drawing (pdf) |
| H-215 | 36 gallons | 48 | 36 | 7 | Drawing (pdf) |
| H-388 | 38 gallons | 54.75 | 21.5 | 9.25 | Drawing (pdf) |
| H-218 | 38 gallons | 68.25 | 21.25 | 8 | Drawing (pdf) |
| H-536 | 38 gallons | 90 | 16 | 8.5 | Drawing (pdf) |
| H-498 | 42 gallons | 60 | 30 | 7.25 | Drawing (pdf) |
| H-432 | 44 gallons | 65 | 15.25 | 12 | Drawing (pdf) |
| H-570 | 47 gallons | 48 | 27 | 15 | Drawing (pdf) |
| H-359 | 47 gallons | 68 | 27.25 | 7.5 | Drawing (pdf) |
| H-515 | 48 gallons | 44 | 29 | 11 | Ask for details |
| H-514 | 50 gallons | 38 | 35 | 11 | Drawing (pdf) |
| H-361 | 50 gallons | 42 | 32 | 10.5 | Drawing (pdf) |
| H-257 | 51 gallons | 30 | 26 | 16 | Drawing (pdf) |
| H-284 | 55 gallons | 42 | 27.25 | 13 | Drawing (pdf) |
| H-303 | 55 gallons | 51 | 27.25 | 14 | Drawing (pdf) |
| H-85 | 55 gallons | 51.75 | 28 | 10 | Drawing (pdf) |
| H-266 | 56 gallons | 60 | 29.5 | 13 | Drawing (pdf) |
| H-484 | 56 gallons | 60 | 30 | 9 | Ask for details |
| H-421 | 56 gallons | 65 | 20.25 | 17.75 | Drawing (pdf) |
| H-365 | 60 gallons | 60.25 | 21 | 13 | Drawing (pdf) |
| H-260 | 60 gallons | 65 | 26 | 13 | Drawing (pdf) |
| H-143 | 60 gallons | 72 | 16 | 14.5 | Drawing (pdf) |
| H-569 | 76 gallons | 48 | 15 | 27 | Drawing (pdf) |
| H-265 | 77 gallons | 60 | 29.5 | 13 | Drawing (pdf) |
| H-540 | 78 gallons | 50 | 50 | 8.625 | Drawing (pdf) |
| H-259 | 82 gallons | 65 | 29.5 | 13 | Ask for details |
| H-390 | 82 gallons | 80 | 15 | 19.5 | Drawing (pdf) |
| H-144 | 93 gallons | 72.25 | 24 | 14.5 | Drawing (pdf) |
| H-310 | 104 gallons | 57 | 28 | 20 | Drawing (pdf) |
| H-165 | 110 gallons | 65 | 21 | 13 | Drawing (pdf) |
| H-165M | 110 gallons | 65 | 21 | 21.5 | Drawing (pdf) |
| H-166 | 115 gallons | 60.25 | 24 | 20 | Drawing (pdf) |
| H-366 | 120 gallons | 65 | 24 | 20 | Drawing (pdf) |
| H-331 | 123 gallons | 100 | 32 | 11 | Drawing (pdf) |
| H-313 | 135 gallons | 83 | 37 | 19 | Drawing (pdf) |
| H-360 | 170 gallons | 58 | 24 | 30 | Drawing (pdf) |
| H-543 | 250 gallons | 72 | 48 | 19 | Drawing (pdf) |
Custom Marine Holding Tanks
End Dump Holding Tanks with Rails
| Part No. | Capacity | Length | Width | Depth | Drawings |
| H-130 | 12 gallons | 18 | 17.75 | 14.25 | Drawing (pdf) |
| H-79 | 15 gallons | 60 | 11.75 | 7.75 | Drawing (pdf) |
| H-59 | 17 gallons | 71.25 | 14.75 | 6.5 | Drawing (pdf) |
| H-28 | 20 gallons | 34 | 15 | 12 | Drawing (pdf) |
| H-42 | 21 gallons | 36 | 21 | 7.5 | Drawing (pdf) |
| H-201 | 22 gallons | 50.5 | 17.25 | 8.75 | Drawing (pdf) |
| H-34 | 23 gallons | 33.75 | 20 | 9.5 | Drawing (pdf) |
| H-47 | 24 gallons | 54.75 | 21 | 7.5 | Drawing (pdf) |
| H-65 | 23 gallons | 30 | 21 | 11 | Drawing (pdf) |
| H-330 | 25 gallons | 31 | 27 | 9.5 | Drawing (pdf) |
| H-55 | 25 gallons | 51 | 23.75 | 9 | Drawing (pdf) |
| H-355 | 25 gallons | 54 | 32 | 5.75 | Drawing (pdf) |
| H-72 | 21 gallons | 59.25 | 16 | 8.5 | Drawing (pdf) |
| H-205 | 27 gallons | 26.75 | 20 | 8.5 | Drawing (pdf) |
| H-213 | 27 gallons | 55 | 23.75 | 7.75 | Drawing (pdf) |
| H-3 | 27 gallons | 55 | 24 | 7 | Drawing (pdf) |
| H-204 | 27 gallons | 57 | 20 | 9 | Drawing (pdf) |
| H-57 | 25 gallons | 64 | 18 | 7.5 | Drawing (pdf) |
| H-368 | 29 gallons | 48 | 38 | 5.5 | Drawing (pdf) |
| H-64 | 30 gallons | 30 | 25 | 11 | Drawing (pdf) |
| H-24 | 30 gallons | 35.75 | 24 | 10 | Drawing (pdf) |
| H-339 | 30 gallons | 55 | 22 | 10 | Drawing (pdf) |
| H-584 | 31 gallons | 54 | 22 | 8 | Drawing (pdf) |
| H-463 | 31 gallons | 60 | 23 | 7.75 | Ask for details |
| H-393 | 32 gallons | 43 | 23 | 10.25 | Drawing (pdf) |
| H-206 | 32 gallons | 55 | 20.25 | 9.5 | Drawing (pdf) |
| H-52 | 32 gallons | 67.5 | 20 | 7.75 | Drawing (pdf) |
| H-464 | 34 gallons | 60 | 23 | 7.75 | Ask for details |
| H-305 | 35 gallons | 47 | 26.5 | 9 | Drawing (pdf) |
| H-512 | 34 gallons | 55 | 24 | 10.5 | Drawing (pdf) |
| H-45 | 35 gallons | 49.25 | 27 | 8.5 | Drawing (pdf) |
| H-51 | 35 gallons | 67.5 | 26 | 7.75 | Drawing (pdf) |
| H-252 | 36 gallons | 45 | 22 | 10.5 | Drawing (pdf) |
| H-6 | 37 gallons | 48.5 | 25 | 9 | Drawing (pdf) |
| H-334 | 39 gallons | 54.75 | 27 | 8.75 | Drawing (pdf) |
| H-14 | 39 gallons | 55 | 26.5 | 9 | Drawing (pdf) |
| H-7 | 40 gallons | 54.5 | 26.5 | 9 | Drawing (pdf) |
| H-308 | 40 gallons | 54.75 | 27 | 9 | Drawing (pdf) |
| H-333 | 40 gallons | 55 | 32 | 10 | Drawing (pdf) |
| H-501 | 40 gallons | 56 | 28.5 | 8.25 | Drawing (pdf) |
| H-290 | 40 gallons | 56.5 | 24.5 | 8.75 | Ask for details |
| H-364 | 40 gallons | 57 | 25 | 9.5 | Drawing (pdf) |
| H-383 | 40 gallons | 57 | 42 | 7 | Drawing (pdf) |
| H-513 | 40 gallons | 60 | 27 | 10 | Ask for details |
| H-507 | 40 gallons | 84 | 27 | 6.5 | Drawing (pdf) |
| H-225 | 44 gallons | 61 | 31.25 | 8.5 | Drawing (pdf) |
| H-407 | 45 gallons | 58 | 25 | 8.75 | Drawing (pdf) |
| H-371 | 50 gallons | 53 | 27 | 10 | Drawing (pdf) |
| H-516 | 50 gallons | 69 | 29 | 8.25 | Ask for details |
| H-363 | 55 gallons | 60 | 35 | 9.25 | Drawing (pdf) |
| H-17 | 55 gallons | 70 | 27 | 8.75 | Ask for details |
Custom Marine Holding Tanks
L-Shaped End Dump Holding Tanks
| Part No. | Capacity | Length | Width | Depth | Drawing |
| H-235 | 9 gallons | 28 | 17.5 | 6 | Drawing (pdf) |
| H-232 | 10 gallons | 30 | 16 | 6.25 | Drawing (pdf) |
| H-435 | 13 gallons | 30 | 20 | 8 | Drawing (pdf) |
| H-236 | 15 gallons | 72.5 | 15 | 6 | Drawing (pdf) |
| H-234 | 18 gallons | 28 | 27 | 6.5 | Drawing (pdf) |
| H-238 | 19 gallons | 71.5 | 18 | 5 | Drawing (pdf) |
| H-522 | 19 gallons | 97.4375 | 16.375 | 7.625 | Drawing (pdf) |
| H-520 | 20 gallons | 103.4375 | 16.375 | 7.625 | Drawing (pdf) |
| H-568 | 20 gallons | 44 | 41.5 | 6 | Drawing (pdf) |
| H-236D | 20 gallons | 72.5 | 15 | 7.5 | Ask for details |
| H-398 | 22 gallons | 38.25 | 44 | 7.75 | Drawing (pdf) |
| H-537 | 23 gallons | 47.75 | 23.25 | 10.5 | Drawing (pdf) |
| H-40 | 24 gallons | 36 | 20 | 12.75 | Drawing (pdf) |
| H-367 | 25 gallons | 42 | 44 | 7.75 | Drawing (pdf) |
| H-509 | 25 gallons | 42.5625 | 25.0625 | 7.25 | Ask for details |
| H-238D | 25 gallons | 71.5 | 18 | 6.5 | Ask for details |
| H-460 | 26 gallons | 37 | 30.5 | 7.5 | Ask for details |
| H-549 | 26 gallons | 54.5 | 19 | 13.375 | Ask for details |
| H-538 | 31 gallons | 103 | 34 | 8.5 | Drawing (pdf) |
| H-348S | 32 gallons | 57 | 44 | 8 | Drawing (pdf) |
| H-369 | 34 gallons | 80 | 33 | 9.5 | Drawing (pdf) |
| H-539 | 37 gallons | 104 | 28.5 | 10.5 | Drawing (pdf) |
| H-534 | 39 gallons | 104 | 18.5 | 6.25 | Drawing (pdf) |
| H-417 | 40 gallons | 57 | 58 | 8 | Drawing (pdf) |
| H-535 | 41 gallons | 104 | 18.5 | 6.25 | Drawing (pdf) |
| H-345 | 41 gallons | 80 | 36 | 6.75 | Drawing (pdf) |
| H-533 | 43 gallons | 53 | 36.25 | 10.5 | Drawing (pdf) |
| H-84 | 50 gallons | 60 | 27 | 11.5 | Ask for details |
| H-314 | 71 gallons | 77 | 34.75 | 9.75 | Drawing (pdf) |
| H-458 | 74 gallons | 57.5 | 19.25 | 20 | Drawing (pdf) |
| H-459 | 103 gallons | 57.5 | 26.5 | 20 | Ask for details |
Custom Marine Holding Tanks
L-Shaped Side Dump Holding Tanks
| Part No. | Capacity | Length | Width | Depth | Drawing |
| H-302 | 13 gallons | 65.75 | 22.75 | 6 | Drawing (pdf) |
| H-301 | 16 gallons | 73.5 | 34.25 | 6 | Drawing (pdf) |
| H-429 | 20 gallons | 80 | 40.5 | 6 | Drawing (pdf) |
| H-285 | 24 gallons | 50 | 22 | 8.75 | Drawing (pdf) |
| H-475 | 26 gallons | 44 | 38.25 | 8 | Ask for details |
| H-233 | 35 gallons | 74 | 33.5 | 6 | Drawing (pdf) |
| H-109 | 40 gallons | 76 | 27 | 10 | Drawing (pdf) |
| H-425 | 45 gallons | 93 | 30 | 8.5 | Drawing (pdf) |
Custom Marine Holding Tanks
Recessed End Dump Holding Tanks
| Part No. | Capacity | Length | Width | Depth | Drawing |
| H-326 | 9 gallons | 31.5 | 15.5 | 8 | Drawing (pdf) |
| H-27 | 10 gallons | 31.25 | 6.5 | 8.5 | Drawing (pdf) |
| H-327 | 10 gallons | 46 | 16.5 | 8.5 | Drawing (pdf) |
| H-306 | 11 gallons | 18.5 | 14.25 | 15.5 | Drawing (pdf) |
| H-322 | 12 gallons | 53 | 11 | 8 | Drawing (pdf) |
| H-573 | 13 gallons | 19.75 | 17.75 | 13.5 | Drawing (pdf) |
| H-552 | 14 gallons | 25 | 19.5 | 9.125 | Ask for details |
| H-382 | 14 gallons | 67 | 11 | 8 | Drawing (pdf) |
| H-271 | 16 gallons | 72.5 | 11 | 8.5 | Drawing (pdf) |
| H-274 | 16 gallons | 79.5 | 11 | 8 | Drawing (pdf) |
| H-381 | 18 gallons | 67 | 11 | 8 | Drawing (pdf) |
| H-328 | 18 gallons | 68 | 14 | 8 | Drawing (pdf) |
| H-248 | 18 gallons | 70.75 | 12 | 7.5 | Drawing (pdf) |
| H-323 | 19 gallons | 68 | 12.25 | 8.5 | Drawing (pdf) |
| H-337 | 20 gallons | 68 | 15 | 8.5 | Drawing (pdf) |
| H-261 | 20 gallons | 71 | 15 | 8.5 | Drawing (pdf) |
| H-321 | 20 gallons | 96 | 11 | 7.5 | Drawing (pdf) |
| H-553 | 21 gallons | 24 | 19.5 | 12.75 | Drawing (pdf) |
| H-556 | 21 gallons | 24.0625 | 20.4375 | 14.25 | Drawing (pdf) |
| H-338 | 24 gallons | 68 | 15 | 8 | Drawing (pdf) |
| H-555 | 27 gallons | 28 | 20 | 15 | Drawing (pdf) |
| H-20 | 27 gallons | 53 | 13 | 12 | Drawing (pdf) |
| H-247 | 27 gallons | 73.75 | 15 | 7.75 | Drawing (pdf) |
| H-97 | 30 gallons | 38.75 | 21.5 | 11.5 | Drawing (pdf) |
| H-91 | 30 gallons | 54.5 | 32 | 7 | Drawing (pdf) |
| H-37 | 35 gallons | 70 | 15 | 10 | Drawing (pdf) |
| H-315 | 40 gallons | 57 | 28 | 9 | Drawing (pdf) |
| H-351 | 44 gallons | 59 | 17 | 13 | Drawing (pdf) |
| H-486 | 47 gallons | 78 | 16.9375 | 11.375 | Ask for details |
| H-490 | 47 gallons | 81 | 17 | 11.625 | Ask for details |
| H-471 | 48 gallons | 54.25 | 20 | 13 | Ask for details |
| H-481 | 59 gallons | 78 | 20 | 11.375 | Ask for details |
| H-385 | 60 gallons | 76.5 | 14.75 | 16 | Ask for details |
| H-391 | 61 gallons | 80 | 13.75 | 20.5 | Ask for details |
| H-482 | 63 gallons | 78 | 23 | 11.375 | Ask for details |
| H-487 | 68 gallons | 78 | 23.5 | 11.375 | Ask for details |
| H-489 | 68 gallons | 81 | 23.5 | 11.625 | Ask for details |
| H-169 | 72 gallons | 90 | 20 | 11 | Drawing (pdf) |
| H-477 | 74 gallons | 57.5 | 48.5 | 9.25 | Ask for details |
| H-357 | 75 gallons | 76.5 | 13.5 | 21 | Drawing (pdf) |
| H-243 | 78 gallons | 85 | 13.25 | 18.5 | Ask for details |
| H-557 | 80 gallons | 37 | 22.5 | 25.625 | Drawing (pdf) |
| H-470 | 80 gallons | 56.75 | 48.75 | 7.75 | Ask for details |
| H-495 | 80 gallons | 58 | 24.5 | 17 | Ask for details |
| H-473 | 100 gallons | 63.75 | 23.5 | 19 | Ask for details |
Custom Marine Holding Tanks
Recessed End Dump Holding Tanks w/Rails
| Part No. | Capacity | Length | Width | Depth | Drawing |
| H-586 | 12 gallons | 35.5 | 18 | 6 | Ask for details |
| H-587 | 19 gallons | 52 | 19 | 6 | Drawing (pdf) |
| H-577 | 23 gallons | 48 | 17.5 | 10 | Drawing (pdf) |
| H-508 | 35 gallons | 56 | 24 | 8.125 | Ask for details |
Custom Marine Holding Tanks
Recessed Side Dump Holding Tanks
| Part No. | Capacity | Length | Width | Depth | Drawing |
| H-575 | 12 gallons | 19.75 | 17.75 | 10 | Drawing (pdf) |
Custom Marine Holding Tanks
Recessed Side Dump Holding Tanks With Rails
Custom Marine Holding Tanks
Side Dump Holding Tanks
| Part No. | Capacity | Length | Width | Depth | Drawing |
| H-542 | 9.5 gallons | 26.875 | 20.25 | 6.875 | Ask for details |
| H-574 | 10 gallons | 46.75 | 28 | 2.75 | Drawing (pdf) |
| H-324 | 11 gallons | 34.5 | 16.5 | 6.5 | Drawing (pdf) |
| H-576 | 11 gallons | 46.75 | 28 | 3.5 | Drawing (pdf) |
| H-559 | 14 gallons | 46 | 16 | 6 | Drawing (pdf) |
| H-564 | 18 gallons | 36.25 | 24.125 | 6 | Drawing (pdf) |
| H-428 | 21 gallons | 53 | 24 | 6 | Drawing (pdf) |
| H-550 | 24 gallons | 32 | 23 | 9.125 | Drawing (pdf) |
| H-423 | 25 gallons | 39 | 31 | 6.5 | Drawing (pdf) |
| H-561 | 29 gallons | 30.375 | 28.3125 | 9.75 | Drawing (pdf) |
| H-532 | 30 gallons | 110 | 14.5 | 6 | Drawing (pdf) |
| H-450S | 32 gallons | 38.75 | 46 | 6.5 | Drawing (pdf) |
| H-416 | 35 gallons | 104 | 17.25 | 6 | Drawing (pdf) |
| H-450L | 35 gallons | 42 | 46 | 6.5 | Drawing (pdf) |
| H-578 | 38 gallons | 72.5 | 22 | 6.5 | Drawing (pdf) |
| H-452 | 41 gallons | 83 | 16 | 10.25 | Drawing (pdf) |
| H-414 | 41 gallons | 85.5 | 16 | 10.75 | Drawing (pdf) |
| H-126 | 42 gallons | 42 | 27.25 | 10.5 | Drawing (pdf) |
| H-239 | 42 gallons | 42.5 | 27.25 | 10.5 | Drawing (pdf) |
| H-443 | 44 gallons | 85.5 | 22 | 10.25 | Drawing (pdf) |
| H-541 | 45 gallons | 55 | 50 | 6 | Ask for details |
| H-439 | 53 gallons | 84 | 20.5 | 9.75 | Drawing (pdf) |
| H-283 | 57 gallons | 42 | 27.25 | 13 | Drawing (pdf) |
| H-349 | 57 gallons | 70 | 24 | 10 | Drawing (pdf) |
| H-441 | 59 gallons | 85.5 | 22 | 10.25 | Drawing (pdf) |
| H-442 | 59 gallons | 85.5 | 22 | 10.25 | Drawing (pdf) |
| H-282 | 60 gallons | 60 | 27 | 11.5 | Drawing (pdf) |
| H-415 | 60 gallons | 85.5 | 24.5 | 10.75 | Drawing (pdf) |
| H-451 | 64 gallons | 83 | 24.5 | 10.25 | Drawing (pdf) |
| H-155 | 65 gallons | 85 | 22.75 | 12.5 | Drawing (pdf) |
| H-426 | 65 gallons | 87.5 | 22 | 11.25 | Drawing (pdf) |
| H-427 | 65 gallons | 87.5 | 22 | 11.25 | Drawing (pdf) |
| H-440 | 70 gallons | 84 | 25 | 9.75 | Drawing (pdf) |
| H-386 | 77 gallons | 87.5 | 22 | 13 | Drawing (pdf) |
| H-387 | 77 gallons | 87.5 | 22 | 13 | Drawing (pdf) |
| H-554 | 250 gallons | 72 | 48 | 19 | Drawing (pdf) |
Custom Marine Holding Tanks
Side Dump Holding Tanks with Rails
| Part No. | Capacity | Length | Width | Depth | Drawing |
| H-82 | 18 gallons | 35.5 | 23.75 | 7.25 | Drawing (pdf) |
| H-299 | 18 gallons | 45.25 | 27.5 | 5.5 | Drawing (pdf) |
| H-530 | 19 gallons | 42 | 28 | 5.75 | Drawing (pdf) |
| H-523 | 20 gallons | 53 | 16.5 | 4.8125 | Drawing (pdf) |
| H-342 | 20 gallons | 55 | 20 | 7 | Drawing (pdf) |
| H-343 | 20 gallons | 55 | 20 | 7 | Drawing (pdf) |
| H-344 | 20 gallons | 55 | 47 | 6 | Ask for details |
| H-563 | 21 gallons | 48.5 | 22.5 | 6 | Drawing (pdf) |
| H-300 | 24 gallons | 52 | 17 | 8 | Drawing (pdf) |
| H-246 | 25 gallons | 56 | 40 | 8 | Drawing (pdf) |
| H-100 | 25 gallons | 58 | 32 | 6 | Drawing (pdf) |
| H-83 | 25 gallons | 58 | 32 | 6 | Drawing (pdf) |
| H-25 | 25 gallons | 59 | 27 | 5.5 | Drawing (pdf) |
| H-228 | 29 gallons | 64.75 | 17 | 7.75 | Ask for details |
| H-75 | 30 gallons | 43 | 20.5 | 12 | Drawing (pdf) |
| H-335 | 30 gallons | 52 | 29 | 8 | Drawing (pdf) |
| H-332 | 30 gallons | 55 | 35 | 7 | Drawing (pdf) |
| H-347 | 30 gallons | 53.75 | 28 | 6.5 | Ask for details |
| H-210 | 30 gallons | 56 | 36 | 6 | Drawing (pdf) |
| H-210M | 30 gallons | 56 | 36 | 6.5 | Drawing (pdf) |
| H-211 | 30 gallons | 56 | 36 | 6 | Drawing (pdf) |
| H-547 | 31 gallons | 60 | 30 | 6 | Drawing (pdf) |
| H-202 | 32 gallons | 54 | 28 | 7.75 | Drawing (pdf) |
| H-212 | 34 gallons | 54 | 28 | 7.25 | Drawing (pdf) |
| H-392 | 34 gallons | 54.25 | 28 | 7.25 | Drawing (pdf) |
| H-211M | 34 gallons | 56 | 36 | 6.5 | Ask for details |
| H-318 | 35 gallons | 55.5 | 30 | 7.5 | Drawing (pdf) |
| H-208 | 35 gallons | 56 | 28 | 8 | Drawing (pdf) |
| H-527 | 35 gallons | 59 | 28 | 8.125 | Drawing (pdf) |
| H-582 | 37 gallons | 61.875 | 24 | 8 | Drawing (pdf) |
| H-583 | 37 gallons | 61.875 | 24 | 8 | Drawing (pdf) |
| H-358 | 38 gallons | 56 | 30 | 7.5 | Drawing (pdf) |
| H-469 | 38 gallons | 60 | 24 | 8 | Ask for details |
| H-221 | 39 gallons | 55.75 | 30 | 8 | Drawing (pdf) |
| H-5 | 40 gallons | 52.5 | 24.25 | 9.25 | Drawing (pdf) |
| H-505 | 40 gallons | 53 | 34 | 7.75 | Drawing (pdf) |
| H-506 | 40 gallons | 53 | 34 | 7.75 | Drawing (pdf) |
| H-352 | 40 gallons | 55 | 32 | 10 | Drawing (pdf) |
| H-340 | 40 gallons | 55 | 35 | 7 | Drawing (pdf) |
| H-341 | 40 gallons | 55 | 47 | 6 | Drawing (pdf) |
| H-288 | 40 gallons | 56 | 30 | 7.75 | Drawing (pdf) |
| H-474 | 40 gallons | 56 | 40 | 8 | Ask for details |
| H-309 | 40 gallons | 57.75 | 42 | 6.75 | Drawing (pdf) |
| H-289 | 40 gallons | 58 | 38 | 7.75 | Drawing (pdf) |
| H-319 | 40 gallons | 59 | 28 | 8 | Drawing (pdf) |
| H-320 | 40 gallons | 59 | 28 | 8 | Drawing (pdf) |
| H-500 | 40 gallons | 65 | 24 | 8.25 | Drawing (pdf) |
| H-245 | 41 gallons | 56 | 40 | 8 | Drawing (pdf) |
| H-209 | 41 gallons | 56 | 32 | 7 | Drawing (pdf) |
| H-203 | 42 gallons | 54.25 | 28 | 9 | Drawing (pdf) |
| H-445 | 42 gallons | 54.5 | 26.5 | 9 | Drawing (pdf) |
| H-240 | 44 gallons | 57 | 42 | 7 | Drawing (pdf) |
| H-207 | 45 gallons | 56 | 40 | 7.75 | Drawing (pdf) |
| H-378 | 45 gallons | 56 | 45 | 5.25 | Drawing (pdf) |
| H-336 | 36 gallons | 57.25 | 32 | 9 | Drawing (pdf) |
| H-409 | 45 gallons | 58.5 | 45 | 5.25 | Drawing (pdf) |
| H-267 | 45 gallons | 60.5 | 33 | 9 | Drawing (pdf) |
| H-455 | 46 gallons | 58 | 25 | 10 | Drawing (pdf) |
| H-412 | 46 gallons | 64 | 31 | 8 | Drawing (pdf) |
| H-585 | 47 gallons | 61 | 26 | 9.5 | Drawing (pdf) |
| H-430 | 47 gallons | 61 | 36 | 7 | Drawing (pdf) |
| H-526 | 48 gallons | 48 | 36 | 6.75 | Drawing (pdf) |
| H-446 | 50 gallons | 54 | 35 | 9 | Drawing (pdf) |
| H-413 | 50 gallons | 56 | 30 | 10 | Drawing (pdf) |
| H-499 | 50 gallons | 56 | 35 | 9 | Drawing (pdf) |
| H-431 | 50 gallons | 61 | 40 | 6.75 | Drawing (pdf) |
| H-579 | 50 gallons | 65 | 29 | 8.25 | Drawing (pdf) |
| H-497 | 55 gallons | 54 | 34 | 9 | Drawing (pdf) |
| H-434 | 55 gallons | 56 | 35 | 9 | Drawing (pdf) |
| H-438 | 55 gallons | 56 | 36 | 9 | Drawing (pdf) |
| H-268 | 60 gallons | 60.5 | 33 | 9 | Drawing (pdf) |
| H-581 | 65 gallons | 60 | 32 | 10.5625 | Drawing (pdf) |
| H-580 | 67 gallons | 62 | 33.5 | 10.125 | Drawing (pdf) |
| H-524 | 76 gallons | 64 | 46 | 8.25 | Drawing (pdf) |
| H-544 | 80 gallons | 37 | 22.5 | 18.75 | Drawing (pdf) |
Our friendly staff is here to help you get the exact product you need!
Ordering a Marine Waste Holding Tank
At our core, we are committed to delivering the strongest and highest quality waste holding tanks for your marine projects, all at affordable prices. These tanks come without pre-drilled holes, offering you a blank canvas to customize the placement of holes and fittings to precisely match your requirements. With a boat's custom holding tank that is fitted your available space, the possibilities are endless.
Here's how our process works:
Begin by completing a tank drawing, providing your tank dimensions and specifications. On the drawing, indicate where you need the ports on your tank. The more precise you are with measurements and location, the better.- Our expert team will carefully review your drawing and reach out to you with valuable feedback and suggestions.
- We collaborate with you to refine the design until you are completely satisfied. Once the design is finalized, we promptly process your order.
- We encourage you to provide as much specific information as possible regarding size and location to ensure a perfect fit for your tank.
If you have any questions or need assistance, our dedicated team is readily available to help. Please call us!
*Please note that mounting straps are not included with this tank, and it is not suitable for gasoline fuel storage. If you require a different type of tank, our team is more than capable of helping you find the ideal custom tank to fulfill your specific needs.
We look forward to working with you to create a tailor-made solution that exceeds your expectations.
Our friendly staff is here to help you get the exact product you need!
Roto Molding for Marine Tanks
The manufacturing of your marine water tank begins with the roto molding process. During this method, high-quality virgin polyethylene resin is melted inside a closed mold, creating a hollow space. The mold is carefully positioned in the casting and subjected to temperatures ranging from 260°C to 370°C.
As the mold rotates, the molten polyethylene resin evenly coats the interior, ensuring smooth walls with a consistent thickness throughout. This innovative technique guarantees the production of a durable marine waste holding tank that is exceptionally strong, seamless, and designed to last for an extended period.
By employing roto molding, we ensure that your water tank possesses the utmost quality, providing you with a reliable solution for your marine needs.
Marine Tanks Accessories
One Clarion has become an industry leader by making sure we meet your needs. We offer customizable tank dimensions to fit your specifications. If your project requires a unique size or shape, a custom mold can even be created to accommodate your needs.
Fittings:
Achieve reliable and secure connections with polyethylene fittings, expertly crafted using state-of-the-art spin welding technology. Through this advanced process, we ensure the creation of robust and long-lasting joints that are completely leak-proof and resistant to breakage. Our fittings are meticulously manufactured to match your specific tanks, guaranteeing a precise and secure connection that will endure over time.
Custom Fitted Compartments:
We also offer a variety of extremely strong, watertight compartments. Choose from rounded corner open ended, square corner open ended, and square corner top and end compartments in a variety of sizes.
See: Custom Storage Compartments
Battery Protection:
Explore our diverse range of battery boxes designed specifically to safeguard your marine battery from potential hazards such as tipping, impact, accidental short-circuits, and corrosion. (Call us for more information!)
- Battery Box GRP-31-S
- Double Battery Box End X End GRP-31-DE
- Double Battery Box Side X Side GRP-31-DS
- Optima Battery Box GRP-34-SO
Sustainable Custom Plastic Storage
These custom plastic marine tank gives a sustainable solution for environmental friendly water storage. Manufactured with non-toxic material, tanks have a low carbon emission during their life cycle. They will withstand corrosion, are leak proof, resist UV damage, and last longer than other tanks. Reduce your carbon footprint with our flexible, cost-effective plastic marine tanks.
Marine Holding Tanks provide a wide range of customization for the size, shape and fit of your boat’s needs. We create the perfect marine waste holding tank for your boat. Talk with one of our team members to find out more about our custom boat water tanks and other marine tanks to fit your project needs.
Our friendly staff is here to help you get the exact product you need!
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