Description
The Custom Roto-Mold 55 Gallon Marine Water Tank (Part# MW-479) is expertly designed to meet the potable water storage needs of marine, RV, and mobile environments. Its low-profile, wide-body design makes it an excellent fit for shallow or deck-mounted installations where vertical space is at a premium.
This tank is manufactured using rotational molding technology, producing a seamless, one-piece polyethylene body that offers superior resistance to cracks, leaks, and impact damage. It is built from FDA-approved polyethylene resin, fully compliant with FDA Regulation 21 CFR 177.1520 (1) 3.1 and 3.2, making it a safe and reliable solution for storing drinking water.
Whether you're retrofitting a yacht, outfitting a van conversion, or building a custom off-grid system, this tank offers performance, safety, and adaptability in one reliable package.
Key Features
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55-Gallon Capacity. Perfect for medium to large freshwater storage requirements in boats and RVs.
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Rotationally Molded Design. Seamless, impact-resistant construction enhances structural strength.
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FDA-Compliant Resin. Manufactured from food-grade polyethylene for safe potable water use.
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Low-Profile Footprint. Measures 50" L x 44" W x 6" H—ideal for deck, under-seat, or low-clearance installs.
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Blank Configuration. No fittings pre-installed—flexible layout options for custom plumbing.
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UV-Stabilized & Marine-Ready. Built to withstand sunlight, vibration, and saltwater exposure.
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Natural Translucent Color. Enables easy visual monitoring of internal water level.
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Made in the USA. Precision-molded in Oregon with consistent quality control.
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Lightweight & Maneuverable. Weighs 71 lbs for its size and capacity.
Specifications
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Product Type: Marine fresh water tank
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Part Number: MW-479
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Capacity: 55 gallons
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Dimensions: 50" L x 44" W x 6" H
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Weight: 71 lbs
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Material: FDA-compliant polyethylene
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Wall Thickness: Approx. 0.25"
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Color: Natural (translucent white)
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Fittings: Blank (no pre-installed fittings)
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Manufacturing Location: Oregon, USA
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Application: Potable water (marine, RV, off-grid, mobile)
Shipping & Warranty
Ships FOB from Idaho (Zip Code: 83605). Freight Class: 250. Liftgate service available for residential or limited-access locations upon request.
Backed by a 1-Year Limited Warranty against manufacturing and material defects under normal use.
Price Match Guarantee
Find a better price from an authorized dealer within 6 months of your purchase? We’ll match it and refund the difference.
Contact: info@tanksupplydepot.com