54 Gallon Custom Roto-Mold Marine Water Tank (MPN: MW-504)

Description

The Custom Roto-Mold 54 Gallon Marine Water Tank (Part# MW-504) is expertly designed to provide durable and reliable potable water storage in marine and mobile environments. With its wide and ultra-low-profile design, it’s especially well-suited for installations where vertical clearance is minimal, such as under-deck or floor-mounted setups.

Manufactured using rotational molding technology, the tank features a seamless, one-piece polyethylene body that resists cracking, warping, and leaks, even in high-vibration settings like boats or RVs.

Constructed from FDA-approved polyethylene resin, the MW-504 complies with FDA Regulation 21 CFR 177.1520 (1) 3.1 and 3.2, ensuring the safe and sanitary storage of drinking water. This tank ships blank, allowing you the freedom to install fittings exactly where needed for your plumbing configuration.

Key Features

• 54-Gallon Capacity – A mid-range solution for water storage in boats, trailers, campers, or off-grid systems.
• Rotationally Molded Construction – One-piece seamless body offers superior resistance to impacts and stress.
• FDA-Compliant Polyethylene – Made from food-grade resin approved for safe potable water use.
• Ultra-Low-Profile Layout – Measures 54" L x 45" W x 5.5" H, ideal for shallow storage areas or beneath flooring.
• Marine-Grade Durability – Engineered to withstand UV rays, saltwater exposure, and continuous movement.
• Blank Configuration – Ships with no pre-installed fittings, giving you full flexibility for customization.
• Stable Yet Manageable – Weighs 77 lbs, offering a balance of stability and easy handling.
• Made in the USA – Proudly manufactured in Oregon, ensuring consistent quality and regulation compliance.
  

Specifications

• Product Type: Marine fresh water tank
• Part Number: MW-504
• Capacity: 54 gallons
• Dimensions: 54" L x 45" W x 5.5" H
• Weight: 77 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.