18 Gallon Custom Roto-Mold Marine Water Tank (MPN: MW-502)

Description

The Custom Roto-Mold 18 Gallon Marine Water Tank (Part# MW-502) is designed to meet the needs of compact potable water storage in marine, RV, van, and trailer applications. Its slim and elongated form factor is perfect for narrow, low-clearance installation areas, such as under benches, along walls, or beneath flooring.

Manufactured using rotationally molded polyethylene, this tank offers exceptional structural integrity, with a seamless, one-piece design that resists cracks, chips, and stress fractures in mobile or high-vibration environments.

Constructed with FDA-approved resin, the MW-502 complies with FDA Regulation 21 CFR 177.1520 (1) 3.1 and 3.2, ensuring safe storage of drinking water. It ships blank (no pre-installed fittings), allowing you full customization of inlet, outlet, and vent placements.

Key Features

• 18-Gallon Capacity – A reliable solution for compact freshwater systems in boats, campers, and off-grid rigs.
• Rotationally Molded Construction – Seamless and impact-resistant build ensures long-lasting, leak-free performance.
• FDA-Compliant Polyethylene – Manufactured from food-grade material certified safe for potable water use.
• Slim, Low-Profile Design – Measures 55" L x 13.5" W x 6" H, ideal for tight, narrow compartments.
• Marine-Grade Durability – Built to withstand UV rays, saltwater, and vibration in mobile environments.
• Blank Configuration – Ships without fittings for flexible, custom plumbing setup.
• Lightweight and Manageable – Weighs 30 lbs, easy to transport and install with basic assistance.
• Made in the USA – Proudly produced in Oregon, meeting high standards of safety and quality.
  

Specifications

• Product Type: Marine fresh water tank
• Part Number: MW-502
• Capacity: 18 gallons
• Dimensions: 55" L x 13.5" W x 6" H
• Weight: 30 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 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 18 Gallon Custom Roto-Mold Marine Water Tank (MW-502) at a lower price from an authorized competitor within 6 months, we’ll match it and refund the difference.

Contact: info@tanksupplydepot.com