40 Gallon Custom Roto-Mold Marine Water Tank (MPN: MW-500)

Description

The Custom Roto-Mold 40 Gallon Marine Water Tank (Part# MW-500) is engineered for reliable potable water storage in marine vessels, campers, trailers, and off-grid setups. Its ultra-low-profile design makes it ideal for underfloor or shallow-compartment installations, where space is limited but capacity cannot be compromised.

Built using rotational molding technology, the tank features a seamless, one-piece polyethylene structure that resists cracks, warping, and leaks—even when exposed to constant motion and vibration.

The tank is made from FDA-approved polyethylene resin, complying with FDA Regulation 21 CFR 177.1520 (1) 3.1 and 3.2 for safe potable water storage. It ships blank, meaning there are no pre-installed fittings, allowing users to place connections exactly where needed.

Key Features

• 40-Gallon Capacity – A practical choice for medium-sized fresh water systems on boats, trailers, and van conversions.
• Rotationally Molded Construction – Seamless, rugged polyethylene body offers superior durability in mobile environments.
• FDA-Compliant Polyethylene – Food-grade material approved for safe drinking water storage.
• Ultra-Low-Profile Footprint – Dimensions of 58.5" L x 38.5" W x 5.625" H make it ideal for installations where height clearance is minimal.
• Marine-Grade Performance – Built to withstand exposure to UV rays, saltwater, and continuous vibration without degrading.
• Blank Configuration – Ships with no pre-drilled fittings, giving complete flexibility for custom plumbing.
• Stable and Lightweight – Weighs just 72 lbs, easy to manage with assistance during installation.
• Made in the USA – Proudly manufactured in Oregon, ensuring consistent quality and safety standards.
  

Specifications

• Product Type: Marine fresh water tank
• Part Number: MW-500
• Capacity: 40 gallons
• Dimensions: 58.5" L x 38.5" W x 5.625" H
• Weight: 72 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

Shipping Information

• Manufacture Lead Time: 4-5 Week Lead Time 
  
• Ships From (State): ID
  

Products are subject to freight or parcel shipping costs. Shipping charges are calculated at checkout based on delivery location, product size, weight, and carrier requirements.

Each tank is manufactured and assembled in the USA using high-quality materials and strict quality control standards—built for long-term, dependable use in demanding applications.

Warranty Information

Warranty coverage varies by manufacturer and product type. For warranty details or to initiate a warranty claim, please contact Tank Supply Direct at info@tanksupplydirect.com.

Price Match Guarantee

If you find the 40 Gallon Custom Roto-Mold Marine Water Tank (MW-500) at a lower price from an authorized competitor within 6 months, we’ll match it and refund the difference.

Contact: info@tanksupplydirect.com