50 Gallon Custom Roto-Mold RV Holding Tank (MPN: H-635)

Description

The Custom Roto-Mold 50 Gallon RV Holding Tank (Part# H-635) is designed to meet the demanding requirements of mobile holding storage systems, including RVs, trailers, food trucks, and off-grid units. With a balanced, mid-size capacity and a durable form factor, this tank is ideal for users needing reliable, long-lasting containment for water or waste.

Built using rotational molding technology, the tank features a seamless, one-piece construction that resists cracking, leaking, and structural failure. Made from FDA-approved polyethylene resin, it complies with FDA Regulation 21 CFR 177.1520 (1) 3.1 and 3.2, making it safe for use with potable water, greywater, or blackwater.

Custom fitting placement is not available at this time. This tank ships blank, or blank with an optional DIY Fitting Kit for user-installed plumbing.

The Tank Superstore’s technical team is available to help guide you to the best tank and installation approach for your mobile system.

Key Features

• 50-Gallon Capacity: Ideal for medium- to large-sized water or waste storage needs in RVs or mobile units.
• Rotationally Molded Construction: Seamless one-piece design for superior durability and leak resistance.
• FDA-Compliant Resin: Made with FDA-approved polyethylene safe for fresh, grey, or black water.
• Moderate Profile Design: At 11.25" tall, fits a variety of underfloor and compartment-style installations.
• Rugged & Weather-Resistant: Resists road vibration, chemical exposure, UV degradation, and impact.
• Blank Configuration: Ships without pre-installed fittings; optional DIY fitting kit available.
• Lightweight & Strong: Weighs only 22 lbs for easy handling without sacrificing strength.
• Made in the USA: Proudly manufactured in Oregon with strict quality controls.
  

Specifications

• Product Type: RV Holding Tank
• Part Number: H-635
• Capacity: 50 Gallons
• Dimensions: 62" L x 21" W x 11.25" H
• Weight: 22 lbs
• Material: FDA-Compliant Polyethylene
• Wall Thickness: Approx. 0.25"
• Color: Natural (Translucent White)
• Fittings: Blank (No pre-installed fittings); DIY Fitting Kit available
• 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.