188 Gallon Custom Roto-Mold Marine Water Tank (MPN: MW-372)

Description

The Custom Roto-Mold 188 Gallon Marine Water Tank (Part# MW-372) is engineered to deliver high-capacity potable water storage in marine, RV, and mobile applications. Designed with a broad rectangular footprint, it is ideal for large-scale water supply systems in boats, utility trailers, houseboats, or off-grid builds requiring reliable volume.

Constructed using rotational molding technology, this tank features a seamless, one-piece design that ensures resistance to cracks, leaks, and structural fatigue. It is manufactured from FDA-approved polyethylene resin and complies with FDA Regulation 21 CFR 177.1520 (1) 3.1 and 3.2, certifying its safe use for potable water storage.

The tank ships blank (no pre-installed fittings), giving you the flexibility to configure your plumbing setup based on your project’s unique requirements. Whether you’re outfitting a marine vessel or designing a custom freshwater system, the MW-372 offers unmatched capacity and durability.

Key Features

• 188-Gallon Capacity: Provides ample potable water storage for large marine or off-grid applications.
• Rotationally Molded Construction: Seamless, one-piece tank body offers maximum structural strength and long-term durability.
• FDA-Compliant Polyethylene: Constructed from food-grade resin approved for safe drinking water use.
• Wide Rectangular Design: Measures 62" L x 40" W x 17.5" H, suitable for large compartments or floor-mounted installations.
• Engineered for Harsh Environments: Built to withstand vibrations, UV exposure, and saltwater conditions.
• Blank Configuration: Ships without pre-installed fittings for full customization of inlet and outlet placement.
• Heavy-Duty Construction: Weighs 110 lbs and features thick walls to support high-capacity use.
• Natural Translucent Color: Allows for simple, visual monitoring of the water level.
• Made in the USA: Proudly manufactured in Oregon to ensure consistent quality and performance.
  

Specifications

• Product type: Marine fresh water tank
• Part number: MW-372
• Capacity: 188 gallons
• Dimensions: 62" L x 40" W x 17.5" H
• Weight: 110 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-372) at a lower price from an authorized competitor within 6 months, we’ll match it and refund the difference.

Contact: info@tanksupplydirect.com