20 Gallon Custom Roto-Mold Marine Water Tank (MPN: MW-535)

Description

The Custom Roto-Mold 20 Gallon Marine Water Tank (Part# MW-535) is a compact, low-profile tank designed for mobile and marine potable water storage where space efficiency and durability are essential. Its long and narrow shape allows for seamless integration into tight or elongated compartments, making it ideal for boats, RVs, trailers, and mobile builds.

Constructed using rotational molding technology, this tank features a seamless, one-piece body that delivers superior durability and resistance to cracking, leaks, and structural deformation. It's engineered to perform reliably in environments subject to frequent movement and vibration.

Manufactured with FDA-approved polyethylene resin, the MW-535 complies with FDA Regulation 21 CFR 177.1520 (1) 3.1 and 3.2, ensuring that it's safe for potable water applications.

Key Features

• 20-Gallon Capacity: Suitable for freshwater systems in RVs, boats, campers, and off-grid builds.
• Rotationally Molded Construction: Seamless design offers maximum strength and leak resistance.
• FDA-Approved Polyethylene: Compliant with food-grade standards for safe potable water use.
• Slim Form Factor: Just 10" tall and 13" wide—perfect for under-bench or narrow compartments.
• Marine-Grade Build: Designed to endure motion, vibration, UV, and moisture without degradation.
• Blank Configuration: No fittings included, offering flexibility for custom installation.
• Lightweight & Easy to Handle: Weighs only 35 lbs for simple transport and mounting.
• Made in the USA: Manufactured in Oregon with precision and quality control.
  

Specifications

• Product type: Marine fresh water tank
• Part number: MW-535
• Capacity: 20 gallons
• Dimensions: 52.625" L x 13" W x 10" H
• Weight: 35 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.