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

Ships FOB from Idaho (Zip Code: 83605) – Freight Class 250.
Liftgate service is available for residential and limited-access deliveries.

Protected by a 1-Year Limited Warranty against manufacturing defects and material flaws.

Price Match Guarantee

Found a lower price for the 21 Gallon Custom Roto-Mold RV Water Tank (W-371) from an authorized dealer? We'll match the price and refund the difference within 6 months of your purchase.

Contact: info@tanksupplydepot.com