31 Gallon Custom Roto-Mold RV Holding Tank (MPN: H-649)

Description

The Custom Roto-Mold 31 Gallon RV Holding Tank (Part# H-649) is engineered to meet the needs of mobile fluid storage in RVs, travel trailers, camper vans, and other compact mobile systems. Its elongated and low-profile shape makes it a perfect solution for under-floor or shallow-compartment installations where vertical space is restricted.

Built using rotational molding technology, this tank features a seamless, one-piece polyethylene body that is highly resistant to cracks, leaks, and structural failure. Manufactured with FDA-approved resin, it meets FDA Regulation 21 CFR 177.1520 (1) 3.1 and 3.2, allowing for safe storage of potable water, greywater, or blackwater.

Need help integrating it into your setup? The Tank Superstore team is standing by to assist with product selection and installation guidance.

Key Features

• 31-Gallon Capacity: Ideal for compact or mid-size RV waste or freshwater systems.
• Rotationally Molded Construction: Seamless design enhances integrity and prevents leakage.
• FDA-Compliant Resin: Approved for potable water, greywater, or blackwater use.
• Slim, Elongated Design: At 84" long and just 7.75" high, perfect for undercarriage mounting.
• Resilient and UV-Resistant: Designed to withstand impacts, vibrations, and outdoor exposure.
• Blank Tank Design: Ships without fittings for full customization during installation.
• Lightweight & Durable: Weighs only 19 lbs, making it easy to handle and install.
• Made in the USA: Manufactured in Oregon to meet strict quality and safety standards.
  

Specifications

• Product Type: RV Holding Tank
• Part Number: H-649
• Capacity: 31 Gallons
• Dimensions: 84" L x 15" W x 7.75" H
• Weight: 19 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, Greywater, or Blackwater
  

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.