Air and Fuel› Fuel Cells, Tanks and Components

C.ROTO MOLDG

MARINE TANK 44GAL

$323.53

SKU: C05W MW-457

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Custom Roto-Mold 44 Gallon Marine Water Tank (Part# MW-457) is built to deliver reliable potable water storage in marine, RV, and mobile utility environments. Its low-profile rectangular shape fits easily into space-constrained areas such as under seating, cabinetry, or equipment compartments, making it ideal for custom installations where height is limited. This tank is rotationally molded from a single piece of polyethylene resin, resulting in a seamless, impact-resistant body. The design eliminates common failure points associated with joints and seams, ensuring long-term durability under rugged marine and road conditions. Made with FDA-approved polyethylene resin, the MW-457 tank complies with FDA regulation 21 CFR 177.1520 (1) 3.1 and 3.2, ensuring it is safe for storing potable drinking water.
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MARINE TANK 44GAL

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandC.ROTO MOLDG
Part NumberC05W MW-457

Videos

Trionic Custom Port Install - Marine Holding and Water Tanks

Trionic Custom Port Install - Marine Holding and Water Tanks

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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