120 Gallon Custom Roto-Mold Marine Water Tank (MPN: MW-437)

Description

The Custom Roto-Mold 120 Gallon Marine Water Tank (Part# MW-437) is purpose-built for high-capacity freshwater storage in marine vessels, recreational vehicles, and mobile service units. With its wide, low-profile layout, this tank is well-suited for installations beneath decks or flat surfaces where vertical clearance is limited.

Crafted using rotational molding technology, this tank features a seamless, one-piece polyethylene body that provides exceptional durability and resistance to structural stress. It is engineered to withstand the rigors of mobile and vibration-heavy environments, ensuring reliable water containment over the long term.

Constructed from FDA-approved polyethylene resin, the MW-437 meets the safety requirements of FDA Regulation 21 CFR 177.1520 (1) 3.1 and 3.2, verifying its suitability for potable water use.

Key Features

• 120-Gallon Capacity: Supports large freshwater storage requirements for extended trips or multiple users.
• Rotationally Molded Construction: Seamless, single-piece design resists cracks and deformation.
• FDA-Compliant Polyethylene: Made from food-grade resin approved for safe drinking water storage.
• Extra-Wide, Low-Profile Design: Measures 85" L x 65" W x 5.5" H — ideal for under-deck or floor-mounted installations.
• Engineered for Harsh Environments: Performs reliably in marine, saltwater, UV, and vibration-prone conditions.
• Blank Configuration: No pre-drilled fittings — allows for full customization of plumbing setup.
• Translucent Natural Color: Enables quick visual inspection of water levels.
• Made in the USA: Proudly manufactured in Oregon under strict quality standards.
  

Specifications

• Product type: Marine fresh water tank
• Part number: MW-437
• Capacity: 120 gallons
• Dimensions: 85" L x 65" W x 5.5" H
• Weight: 163 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: 4-5 Week Lead Time 
  
• 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

Warranty coverage varies by manufacturer and product type. For warranty details or to initiate a warranty claim, please contact Tank Supply Direct at info@tanksupplydirect.com.

Price Match Guarantee

If you find the 120 Gallon Custom Roto-Mold Marine Water Tank (MW-437) at a lower price from an authorized competitor within 6 months, we’ll match it and refund the difference.

Contact: info@tanksupplydirect.com