90 Gallon Custom Roto-Mold Marine Water Tank (MPN: MW-539)

Description

The Custom Roto-Mold 90 Gallon Marine Water Tank (Part# MW-539) is built to provide mid-to-high capacity potable water storage for mobile and marine systems. With its balanced rectangular footprint and moderate height, it fits neatly into a wide range of boat decks, RV storage bays, and custom trailer builds.

Manufactured using rotational molding technology, the MW-539 is formed as a seamless, one-piece tank that delivers superior resistance to cracks, punctures, and stress failure. Its structure is optimized to perform under the movement, vibration, and shifting loads common in mobile environments.

Constructed from FDA-approved polyethylene resin, the tank complies with FDA Regulation 21 CFR 177.1520 (1) 3.1 and 3.2, ensuring it’s suitable for safe drinking water storage. The tank ships in a blank configuration, allowing installers to add fittings wherever necessary for maximum flexibility.

Key Features

• 90-Gallon Capacity: Reliable water storage for extended marine or off-grid use.
• Rotationally Molded Design: Seamless build resists impact, vibration, and stress cracking.
• Food-Grade Polyethylene: Fully compliant with FDA potable water regulations.
• Compact Height: Only 14.25" tall—perfect for underdeck or low-compartment installations.
• Marine-Ready Durability: Handles UV, saltwater, and high-motion environments.
• Blank Setup: Ships without fittings for flexible plumbing configurations.
• Easy to Handle: Weighs 71 lbs for installation with minimal assistance.
• Made in the USA: Crafted in Oregon under strict quality control protocols.
  

Specifications

• Product type: Marine fresh water tank
• Part number: MW-539
• Capacity: 90 gallons
• Dimensions: 65.5" L x 22.5" W x 14.25" H
• Weight: 71 lbs
• Material: FDA-compliant polyethylene
• Wall thickness: 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.