188 Gallon Custom Roto-Mold Marine Water Tank (MPN: MW-501)

Description

The Custom Roto-Mold 188 Gallon Marine Water Tank (Part# MW-501) is built for high-capacity potable water storage in marine and mobile environments where both volume and durability matter. Its rugged, horizontal design is ideal for larger boats, trailers, off-grid cabins, or any application requiring a reliable freshwater reserve.

Crafted with rotational molding technology, the tank features a seamless, one-piece polyethylene construction that resists cracks, ruptures, and vibration stress—making it ideal for use on the water or on the move.

Manufactured from FDA-approved polyethylene resin, the MW-501 complies with FDA Regulation 21 CFR 177.1520 (1) 3.1 and 3.2, ensuring safe, long-term storage of drinking water. The tank ships blank (no pre-installed fittings), giving you total flexibility for custom plumbing installations.

Key Features

• 188-Gallon Capacity – A large-scale solution ideal for extended freshwater storage in marine and off-grid applications.
• Rotationally Molded Construction – Seamless and impact-resistant body delivers long-lasting performance in mobile environments.
• FDA-Compliant Polyethylene – Made with food-grade resin approved for safe potable water storage.
• Spacious Yet Stable – Measures 61" L x 40" W x 20" H, providing a high volume without excessive footprint length.
• Marine-Grade Durability – Designed to withstand UV exposure, saltwater environments, and road or waterborne vibrations.
• Blank Configuration – Ships with no pre-installed fittings, giving you full control over the inlet/outlet placement.
• Balanced Weight – Weighs 115 lbs, offering both high-capacity stability and reasonable handling for installation.
• Made in the USA – Proudly manufactured in Oregon, ensuring dependable quality and regulatory compliance.
  

Specifications

• Product Type: Marine fresh water tank
• Part Number: MW-501
• Capacity: 188 gallons
• Dimensions: 61" L x 40" W x 20" H
• Weight: 115 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 188 Gallon Custom Roto-Mold Marine Water Tank (MW-501) at a lower price from an authorized competitor within 6 months, we’ll match it and refund the difference.

Contact: info@tanksupplydirect.com