28 Gallon Custom Roto-Mold RV Holding Tank (MPN: H-661)

Description

The Custom Roto-Mold 28 Gallon RV Holding Tank (Part# H-661) is engineered to meet the demands of mobile holding storage applications, including RVs, trailers, campers, food trucks, and off-grid systems. Its long and slim profile is ideal for tight installation areas or custom layouts requiring a linear footprint.

Made using rotational molding technology, the tank features a seamless, one-piece construction for exceptional strength and resistance against cracks, leaks, and impact damage. Constructed from FDA-approved polyethylene resin, it meets FDA Regulation 21 CFR 177.1520 (1) 3.1 and 3.2, ensuring safety for potable water, greywater, or blackwater use.

The Tank Superstore’s team of specialists is available to help you find the right tank for your specific application. Contact us today for expert assistance.

Key Features

• 28-Gallon Capacity: A great fit for mid-size mobile water or waste storage systems.
• Rotationally Molded Construction: Seamless, durable tank body ensures leak-free performance.
• FDA-Compliant Polyethylene: Safe for storing potable water, greywater, or blackwater.
• Long, Narrow Profile: Dimensions (74.25" x 10.125" x 11") fit well in confined or elongated spaces.
• Impact & UV Resistant: Built to withstand road vibration, chemical exposure, and outdoor elements.
• Blank Configuration: Ships with no pre-installed fittings, offering full customization flexibility.
• Made in the USA: Proudly manufactured in Oregon under strict quality control measures.
  

Specifications

• Product Type: RV Holding Tank
• Part Number: H-661
• Capacity: 28 Gallons
• Dimensions: 74.25" L x 10.125" W x 11" H
• Weight: 18 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.