Description
The Custom Roto-Mold 42 Gallon Marine Water Tank (Part# MW-405) is designed to meet the demands of potable water storage in marine, RV, and mobile environments. With its broad, low-profile footprint, it is ideal for shallow compartments, deck storage, or under-bench installations in boats, trailers, or van conversions.
This tank is constructed using rotational molding technology, resulting in a seamless, one-piece body that resists cracks, leaks, and structural fatigue. It is manufactured from FDA-approved polyethylene resin, ensuring compliance with FDA Regulation 21 CFR 177.1520 (1) 3.1 and 3.2, making it safe for drinking water use.
The tank ships blank (no pre-installed fittings), allowing full flexibility for your plumbing configuration. Whether for a freshwater system on the water or on the road, the MW-405 delivers rugged, high-capacity performance in a space-saving format.
Key Features
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42-Gallon Capacity: Provides dependable freshwater storage for marine vessels, RVs, and mobile systems.
 
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Rotationally Molded Construction: Seamless, single-piece design delivers superior durability and structural integrity.
 
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FDA-Compliant Polyethylene: Made from food-grade resin that is safe for potable water use.
 
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Low-Profile Rectangular Design: Measures 64.5" L x 29.625" W x 8.5" H, ideal for shallow installation locations.
 
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Rugged and Reliable: Engineered to withstand vibration, UV exposure, and saltwater conditions.
 
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Blank Configuration: Ships without fittings for complete customization of inlet/outlet locations.
 
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Heavy-Duty Construction: Weighs 70 lbs and features thick walls suitable for long-term use.
 
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Natural Translucent Color: Allows for quick and easy visual monitoring of water level.
 
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Made in the USA: Proudly manufactured in Oregon under stringent quality control standards.
 
Specifications
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Product type: Marine fresh water tank
 
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Part number: MW-405
 
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Capacity: 42 gallons
 
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Dimensions: 64.5" L x 29.625" W x 8.5" H
 
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Weight: 70 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 use)
 
Shipping & Warranty
Ships FOB from Idaho (Zip Code: 83605), Freight Class 250. Liftgate service is available upon request for residential or limited-access delivery locations.
Covered by a 1-Year Limited Warranty against defects in materials and workmanship under normal use conditions.
Price Match Guarantee
If you find the 42 Gallon Custom Roto-Mold Marine Water Tank (MW-405) at a lower price from an authorized competitor within 6 months, we’ll match it and refund the difference.
Contact: info@tanksupplydirect.com