20 Gallon Custom Roto-Mold RV Holding Tank (MPN: H-663)

Description

The Custom Roto-Mold 20 Gallon RV Holding Tank (Part# H-663) is engineered to meet the demands of mobile holding storage applications, including RVs, trailers, campers, food trucks, and off-grid systems. Its balanced dimensions and moderate capacity make it a great fit for mid-size installations or as an auxiliary tank.

Constructed using rotational molding technology, the tank features a seamless, one-piece build that ensures long-lasting durability and resistance to cracks, leaks, and impact damage. 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 potable water, greywater, or blackwater storage.

The Tank Superstore’s team of specialists is ready to assist you in choosing the right tank for your project. Contact us today for professional support.

Key Features

• 20-Gallon Capacity: Ideal for smaller RVs or auxiliary waste/water storage.
• Rotationally Molded Construction: Seamless, single-piece body for leak-free, long-term performance.
• FDA-Compliant Polyethylene: Safe for potable water, greywater, or blackwater use.
• Compact Footprint: Measures 42" x 18" x 10.5", fitting well in tight or custom compartments.
• UV & Chemical Resistant: Withstands road vibration, outdoor exposure, and harsh fluids.
• Blank Configuration: Ships without pre-installed fittings for full plumbing customization.
• Made in the USA: Proudly manufactured in Oregon to the highest quality standards.
  

Specifications

• Product Type: RV Holding Tank
• Part Number: H-663
• Capacity: 20 Gallons
• Dimensions: 42" L x 18" W x 10.5" H
• Weight: 12 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.