37 Gallon Custom Roto-Mold RV Holding Tank (MPN: H-583)

Description

The Custom Roto-Mold 37 Gallon RV Holding Tank (Part# H-583) is specifically designed for reliable liquid storage in RVs, trailers, campers, and mobile sanitation systems where low-profile fitment is critical.

Constructed with seamless, rotationally molded polyethylene, this tank is highly resistant to cracks, punctures, and structural failures, even under demanding road and climate conditions. It uses FDA-approved polyethylene resin, fully compliant with FDA regulation 21 CFR 177.1520 (1) 3.1 and 3.2, ensuring safe use for potable water, as well as greywater or blackwater storage.

Whether you're planning a custom build or upgrading an older system, the Tank Superstore team is available to help you select the right solution with expert support.

Key Features

• 37-Gallon Capacity: Perfect for mid-sized RVs, campers, or mobile restroom units.
• Rotationally Molded Design: Seamless, one-piece construction minimizes risk of leaks and structural failure.
• FDA-Compliant Polyethylene: Approved for drinking water use and safe for grey and black water systems.
• Low-Profile Dimensions: Stands only 8" tall, ideal for under-floor or tight-clearance installations.
• UV & Impact Resistant: Built to handle harsh travel, chemical exposure, and long-term outdoor use.
• Blank Tank Configuration: Ships without fittings, allowing for custom placement of inlets and outlets.
• Lightweight Yet Durable: Weighs just 22 lbs, making installation simple and efficient.
• Made in the USA: Manufactured with reliable materials and craftsmanship in the United States.
  

Specifications

• Product Type: RV Holding Tank
• Part Number: H-583
• Capacity: 37 Gallons
• Dimensions: 61.875" L x 24" W x 8" H
• Weight: 22 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: Fresh, Grey, or Black 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.