163 Gallon Custom Roto-Mold Marine Water Tank (MPN: MW-345)

Description

The Custom Roto-Mold 163 Gallon Marine Water Tank (Part# MW-345) is a high-capacity solution designed for demanding potable water storage applications in marine, RV, and mobile utility setups. Its rectangular form offers a balance of volume and space efficiency, making it ideal for mounting in larger vessels and overland rigs.

This tank is constructed using rotational molding technology, producing a seamless, one-piece body that is highly resistant to cracking, leaks, and deformation. Its rugged design is built to withstand the challenges of mobile environments including frequent motion, vibration, and external exposure.

Made from FDA-approved polyethylene resin, the MW-345 complies with FDA Regulation 21 CFR 177.1520 (1) 3.1 and 3.2, making it safe for drinking water storage. The tank ships blank, allowing for custom fitting placement tailored to your specific plumbing system.

Key Features

• 163-Gallon Capacity: Ideal for large-scale potable water needs in marine or off-grid installations.
• Rotationally Molded Seamless Design: One-piece construction eliminates weak points and leak risks.
• FDA-Compliant Polyethylene Resin: Approved for safe use with drinking water.
• Rectangular Layout: Efficient space usage for mounting in hulls, basements, or cargo compartments.
• Durable Yet Manageable: Weighs 99 lbs, balancing capacity with portability for setup.
• Blank Configuration: No fittings installed—provides full flexibility for plumbing connections.
• Marine & RV Ready: Built to withstand harsh conditions, vibration, UV, and saltwater exposure.
• Proudly Made in the USA: Manufactured in Oregon with strict quality control standards.
  

Specifications

• Product type: Marine fresh water tank
• Part number: MW-345
• Capacity: 163 gallons
• Dimensions: 65" L x 30.5" W x 19.25" H
• Weight: 99 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.