40 Gallon Custom Roto-Mold RV Water Tank (MPN: W-356)

Description

The Custom Roto-Mold 40 Gallon RV Water Tank (Part# W-356) is engineered to meet the demands of mobile potable water storage. Manufactured using rotationally molded polyethylene resin, this tank is built for long-term durability and safety in portable applications.

Designed for use in recreational vehicles, campers, food trucks, and tiny homes, this tank provides a dependable mid-size water storage solution that fits a variety of mobile setups.

With its seamless, one-piece construction, the tank offers excellent resistance to cracking, rupturing, and chipping, even during road vibration and frequent travel. Constructed from FDA-approved polyethylene, the tank meets FDA Regulation 21 CFR 177.1520 (1) 3.1 and 3.2, ensuring safe and compliant storage of potable water.

Key Features

• 40-Gallon Capacity: Ideal for moderate-use potable water systems in RVs, vans, and food service vehicles.
• Rotationally Molded Polyethylene: Seamless one-piece tank resists leaks, cracks, and impact damage.
• FDA-Compliant Materials: Made with food-grade polyethylene approved for drinking water storage.
• Ultra-Low Profile Design: At only 6 inches high, it’s perfect for installation in shallow or under-floor compartments.
• Durable & Road-Ready: Engineered to withstand vibration, motion, and harsh travel environments.
• Blank Configuration: Ships without pre-installed fittings to allow flexible placement of inlet and outlet ports.
• Made in the USA: Expertly manufactured in Oregon from high-quality polyethylene resin.
  

Specifications

• Product Type: RV Fresh Water Tank
• Part Number: W-356
• Capacity: 40 Gallons
• Dimensions: 57" L x 35" W x 6" H
• Weight: 30 lbs
• Material: FDA-Compliant Polyethylene
• Color: Natural (Translucent White)
• Fittings: Blank (No pre-installed fittings)
• Manufacturing Location: Oregon, USA
• Application: Potable Water
  

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.