Description
The Custom Roto-Mold 21 Gallon RV Holding Tank (Part# H-563) is engineered to meet the requirements of mobile liquid storage for RVs, trailers, campers, and portable sanitation systems.
Built with a seamless, rotationally molded construction, this tank provides superior durability and resistance to cracks, chips, and ruptures, even in demanding environmental and travel conditions. Manufactured from FDA-approved polyethylene resin, it meets FDA regulation 21 CFR 177.1520 (1) 3.1 and 3.2, making it safe for potable water storage and waste holding.
Compact and versatile, the 21-gallon capacity makes it an excellent choice for a variety of mobile applications. The Tank Superstore team is available to provide expert advice and support to ensure the right fit for your setup.
Key Features
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21-Gallon Capacity: Suitable for compact RVs, trailers, van conversions, and portable restrooms.
 
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Rotationally Molded Design: One-piece, seamless body resists leaks, cracks, and weak spots.
 
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FDA-Compliant Resin: Made with food-grade polyethylene safe for potable water and approved waste systems.
 
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Ultra-Slim Profile: Just 6" high, ideal for tight underfloor compartments or shallow enclosures.
 
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Impact-Resistant Polyethylene: Withstands road vibration, chemical exposure, UV radiation, and temperature fluctuations.
 
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Blank Tank Setup: Ships without fittings, giving you flexibility to install ports as needed.
 
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Lightweight Construction: Weighs only 14 lbs, making transport and installation simple.
 
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Manufactured in the USA: Produced with high-quality materials and standards.
 
Specifications
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Product Type: RV Holding Tank
 
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Part Number: H-563
 
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Capacity: 21 Gallons
 
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Dimensions: 48.5" L x 22.5" W x 6" H
 
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Weight: 14 lbs
 
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Material: FDA-Compliant Polyethylene
 
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Wall Thickness: Approx. 0.25"
 
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Color: Natural (Translucent White)
 
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Fittings: Blank (No pre-installed fittings)
 
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Manufacturing Location: USA
 
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Application: Fresh, Grey, or Black Water
 
Shipping & Warranty
Ships FOB from Idaho (Zip Code: 83605), Freight Class 250. Liftgate delivery is available for residential or limited-access locations upon request.
Covered by a 1-Year Limited Warranty against defects in materials and workmanship under normal usage conditions.
Price Match Guarantee
If you find the 21 Gallon Custom Roto-Mold Holding Tank (H-563) at a lower price from any authorized retailer within 6 Months, we’ll match the price and refund the difference.
Contact: info@tanksupplydirect.com