30 Gallon Custom Roto-Mold Marine Water Tank (MPN: MW-338)

Description

The Custom Roto-Mold 30 Gallon Marine Water Tank (Part# MW-338) is a durable and space-efficient solution for potable water storage in marine, RV, and mobile utility setups. Its slim, low-profile design makes it an excellent fit for tight installations where vertical space is limited—such as under seats, decks, or in narrow compartments.

Constructed using rotational molding technology, the tank features a seamless, one-piece body that enhances structural integrity and resists cracking, splitting, or leaking over time. It’s built to endure tough mobile environments, including continuous motion and exposure to the elements.

Made from FDA-approved polyethylene resin, this tank meets FDA Regulation 21 CFR 177.1520 (1) 3.1 and 3.2, making it safe for the storage of drinking water. It ships blank, so you can install fittings precisely where your system requires them.

Key Features

• 30-Gallon Capacity: Ideal for small to medium marine and RV potable water systems.
• Seamless Rotational Molded Design: One-piece build ensures long-term leak resistance and durability.
• FDA-Compliant Polyethylene: Manufactured from food-grade resin approved for potable water.
• Low-Profile Dimensions: At only 7.75" high, it's perfect for shallow or horizontal space constraints.
• Lightweight and Strong: Weighs just 40 lbs, making it easy to handle without compromising strength.
• Blank Configuration: Ships with no fittings for custom placement to suit your plumbing layout.
• Marine-Ready Durability: Built to withstand UV exposure, vibration, and marine conditions.
• Proudly Made in the USA: Manufactured in Oregon under rigorous quality control standards.
  

Specifications

• Product type: Marine fresh water tank
• Part number: MW-338
• Capacity: 30 gallons
• Dimensions: 45.5" L x 22" W x 7.75" H
• Weight: 40 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.