80 Gallon Custom Roto-Mold Marine Water Tank (MPN: MW-426)

Description

The Custom Roto-Mold 80 Gallon Marine Water Tank (Part# MW-426) is engineered for high-capacity potable water storage in marine, RV, and mobile utility setups. Its wide, low-profile design makes it a great fit for applications requiring large water volume while maintaining a stable center of gravity, such as below-deck installations or trailer beds.

Constructed using rotational molding technology, this tank features a seamless, one-piece body that offers superior structural strength and long-lasting resistance to stress cracks, leaks, and impacts. The design is optimized for rugged performance in vibration-heavy and mobile environments.

Made from FDA-approved polyethylene resin, the MW-426 complies with FDA Regulation 21 CFR 177.1520 (1) 3.1 and 3.2, ensuring it is safe for potable water use. The tank’s natural translucent finish allows users to easily check water levels at a glance without the need for sensors.

Key Features

• 80-Gallon Capacity: Offers ample fresh water supply for marine or mobile applications.
• Rotationally Molded Construction: Seamless, single-piece design delivers strength and leak resistance.
• FDA-Compliant Polyethylene: Safe for storing drinking water; made from food-grade resin.
• Wide, Low-Profile Design: Measures 54" L x 27" W x 13" H — perfect for underfloor or deck-mounted setups.
• Rugged Build for Harsh Conditions: Withstands vibration, saltwater, and UV exposure.
• Blank Configuration: Ships without pre-drilled fittings to enable flexible plumbing setup.
• Lightweight & Maneuverable: Weighs 65 lbs, making transport and installation manageable.
• Natural Translucent Color: Allows for easy water level monitoring.
• Made in the USA: Proudly manufactured in Oregon to high quality standards.
  

Specifications

• Product type: Marine fresh water tank
• Part number: MW-426
• Capacity: 80 gallons
• Dimensions: 54" L x 27" W x 13" H
• Weight: 65 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: 3-5 Weeks 
  
• 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

Custom Roto-Molding tanks are covered by a 5-year manufacturer warranty from the date of original purchase against defects in material and workmanship. Coverage applies to tanks that are correctly installed and have not been subjected to abuse or misuse, and is for the benefit of the original end user. The warranty does not cover misuse, fire, accident, negligence, transit damage, unauthorized modifications, excessive external pressure, abnormal use, product loss through leakage, or related injury/property damage. Manufacturer liability is limited to repair or, at its option, replacement of a qualifying defective product, subject to written notice within the warranty period and return of the item to the point of manufacture with transportation prepaid. For warranty details or to initiate a warranty claim, please contact Tank Supply Direct at info@tanksupplydirect.com.