55 Gallon Custom Roto-Mold Marine Water Tank (MPN: MW-479)

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

• 55-Gallon Capacity. Perfect for medium to large freshwater storage requirements in boats and RVs.
• Rotationally Molded Design. Seamless, impact-resistant construction enhances structural strength.
• FDA-Compliant Resin. Manufactured from food-grade polyethylene for safe potable water use.
• Low-Profile Footprint. Measures 50" L x 44" W x 6" H—ideal for deck, under-seat, or low-clearance installs.
• Blank Configuration. No fittings pre-installed—flexible layout options for custom plumbing.
• UV-Stabilized & Marine-Ready. Built to withstand sunlight, vibration, and saltwater exposure.
• Natural Translucent Color. Enables easy visual monitoring of internal water level.
• Made in the USA. Precision-molded in Oregon with consistent quality control.
• Lightweight & Maneuverable. Weighs 71 lbs for its size and capacity.
  

Specifications

• Product Type: Marine fresh water tank
• Part Number: MW-479
• Capacity: 55 gallons
• Dimensions: 50" L x 44" W x 6" H
• Weight: 71 lbs
• Material: FDA-compliant polyethylene
• Wall Thickness: Approx. 0.25"
• Color: Natural (translucent white)
• Fittings: Blank (no pre-installed fittings)
• Manufacturing Location: Oregon, USA
• 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