21 Gallon Custom Roto-Mold RV Water Tank (MPN: W-371)

Description

The Custom Roto-Mold 21 Gallon RV Water Tank (Part# W-371) is purpose-built to meet the demands of mobile potable water storage in compact and mid-sized applications. Crafted using rotationally molded polyethylene, this tank delivers a durable, seamless design that performs reliably even in rugged travel environments.

Ideal for use in RVs, travel trailers, van conversions, food trucks, tiny homes, and more, this tank’s low-profile design allows for flexible installation in limited spaces. The FDA-approved polyethylene resin used in construction ensures full compliance with FDA regulation 21 CFR 177.1520 (1) 3.1 and 3.2, making it safe for drinking water.

The one-piece molded construction resists cracking, leaking, and splitting, making this a long-lasting solution for mobile water storage. Backed by industry-standard quality and USA-based manufacturing.

Key Features

• 21-Gallon Capacity: Perfect for light-duty water storage in mobile environments.
• Durable One-Piece Construction: Rotationally molded for superior strength and reliability.
• FDA-Compliant Polyethylene: BPA-free and safe for storing potable water.
• Space-Saving Design: Fits tight compartments at just 9" tall.
• Versatile Use: Ideal for RVs, food trucks, trailers, and tiny homes.
• USA-Made Quality: Manufactured in Oregon with high-quality materials.
• Custom Fitting Option Available: Add fittings or modify to suit your system needs.
  

Specifications

• Product Type: RV Fresh Water Tank
• Part Number: W-371
• Capacity: 21 Gallons
• Dimensions: 29.5" L x 20" W x 9" H
• Weight: 11 lbs
• Material: FDA-Compliant Polyethylene
• Color: Natural (Translucent White)
• Fittings: Not included (customizable upon request)
• Manufacturing Location: Oregon, USA
• Application: Potable Water Storage
  

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.