Description
The Custom Roto-Mold 300 Gallon Marine Water Tank (Part# MW-476) is a high-capacity potable water storage solution designed for marine, RV, trailer, and off-grid applications. With its large volume and durable construction, it’s ideal for extended freshwater supply in demanding mobile or remote environments.
Manufactured using a rotational molding process, this tank features a seamless, one-piece body that ensures long-term structural integrity. It’s crafted from FDA-approved polyethylene resin, compliant with FDA regulation 21 CFR 177.1520 (1) 3.1 and 3.2, making it safe for storing potable drinking water for human use.
The MW-476 is designed with a long rectangular footprint (96" x 30") and a 24" height, which allows for installation in a wide range of horizontal storage configurations, including underneath decks, in trailers, or mounted in service vehicles.
Key Features
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300-Gallon Capacity. Offers extended potable water supply for marine and mobile installations.
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One-Piece Rotomolded Construction. Seamless design resists cracking, splitting, and structural failure.
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FDA-Compliant Polyethylene. Safe for drinking water—built with certified food-grade resin.
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Optimized Dimensions. Measures 96" L x 30" W x 24" H—ideal for horizontal storage in tight or flat compartments.
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Blank Configuration. Ships with no fittings installed for complete plumbing customization.
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Engineered for Harsh Use. Performs reliably in marine, trailer, RV, and off-grid conditions.
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Natural Translucent Color. Allows easy visual inspection of water levels.
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Proudly Made in the USA. Manufactured in Oregon to high-quality production standards.
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Relatively Lightweight for Size. Weighs 152 lbs, easy to move with proper handling equipment.
Specifications
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Product Type: Marine fresh water tank
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Part Number: MW-476
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Capacity: 300 gallons
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Dimensions: 96" L x 30" W x 24" H
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Weight: 152 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, trailer, RV, off-grid)
Shipping & Warranty
Ships FOB from Idaho (Zip Code: 83605). Freight Class: 250. Liftgate service available upon request for residential or limited-access delivery locations.
Backed by a 1-Year Limited Warranty against defects in materials and workmanship under normal use conditions.
Price Match Guarantee
Find the MW-476 300 Gallon Marine Water Tank offered at a lower price by an authorized seller? We’ll match the price and refund the difference within 6 months of your purchase.
Contact: info@tanksupplydepot.com