22 Gallon Custom Roto-Mold RV Holding Tank (MPN: H-398)

Description

The Custom Roto-Mold 22 Gallon RV Holding Tank (Part# H-398) is designed to support compact mobile liquid storage in RVs, travel trailers, van builds, food trucks, and marine vessels.

Its seamless, one-piece rotationally molded construction eliminates structural weak points, delivering exceptional resistance to cracks, impact, and long-term wear.
Made with FDA-compliant polyethylene resin, this tank meets FDA 21 CFR 177.1520 (1) 3.1 and 3.2 standards, making it safe for fresh (potable), grey, or black water applications.

Need help planning your system? The Tank Superstore support team is available to provide technical assistance and application-specific recommendations.

Key Features

• 22-Gallon Capacity: Ideal for compact RVs, van conversions, and mobile kitchens.
• FDA-Approved Polyethylene: Compliant with FDA 21 CFR 177.1520, safe for drinking water or waste storage.
• Rotationally Molded, Seamless Design: Ensures leak-proof strength and longevity in rugged conditions.
• Ultra-Low Profile Geometry: At just 7.75" high, it fits in tight vertical clearance spaces.
• Ships Blank: Comes without fittings, suitable for DIY customization using a fitting kit.
• Lightweight Yet Durable: Weighs only 15 lbs, making installation easier without sacrificing durability.
• Weather and Road-Ready: Resistant to vibration, impact, temperature extremes, and UV degradation.
• Semi-Translucent Finish: Allows for easy fluid level checks without the need for gauges.
• Multi-Application Compatible: Suitable for fresh, grey, or black water in RVs, trailers, boats, and mobile service units.
• Made in the USA: Proudly manufactured in Idaho, ensuring quality and consistency.
  

Specifications

• Product Type: RV Holding Tank
• Part Number: H-398
• Capacity: 22 Gallons
• Dimensions: 44" L x 38.25" W x 7.75" H
• Weight: 15 lbs
• Material: FDA-Compliant Polyethylene
• Wall Thickness: Approx. 0.25"
• Color: Natural (Translucent White)
• Fittings: Blank (No pre-installed fittings)
• Manufacturing Location: Idaho, USA
• Application: Fresh, Grey, or Black Water
  

Shipping & Warranty

Shipping Information

• Manufacture Lead Time: 4-5 Week Lead Time 
  
• 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

Warranty coverage varies by manufacturer and product type. For warranty details or to initiate a warranty claim, please contact Tank Supply Direct at info@tanksupplydirect.com.

Price Match Guarantee

If you find the 22 Gallon Custom Roto-Mold Holding Tank (H-398) offered at a lower price from any authorized dealer within 6 months, we will match the price and refund the difference.

Contact: info@tanksupplydirect.com