Description
The Custom Roto-Mold 18 Gallon RV Holding Tank (Part #H-328) is engineered to deliver reliable liquid storage in mobile environments such as RVs, campers, food trucks, and marine vehicles.
Manufactured using rotational molding technology, this one-piece tank offers enhanced durability and resistance to vibration, impacts, and environmental wear. Constructed with FDA-approved polyethylene resin, it complies with FDA Regulation 21 CFR 177.1520 (1) 3.1 & 3.2, making it ideal for fresh, grey, or black water storage.
With its long and narrow form, this tank is ideal for low-profile installations or custom fitment projects where space optimization is key.
Key Features
- 
Seamless Rotationally Molded Design: Eliminates weak points found in welded or assembled tanks.
 
- 
FDA-Compliant Material: Crafted from food-grade polyethylene resin safe for potable water.
 
- 
Versatile Applications: Compatible with black, grey, or fresh water systems.
 
- 
Slim Profile: 8" height and 14" width make it ideal for underfloor or low-clearance spaces.
 
- 
Durable & Lightweight: Weighs only 15 lbs while maintaining excellent impact resistance.
 
- 
Blank Configuration: Ships without pre-installed fittings for maximum customization.
 
- 
Made in the USA: Proudly manufactured in Idaho to rigorous quality standards.
 
Specifications
- 
Product Type: RV Holding Tank
 
- 
Part Number: H-328
 
- 
Capacity: 18 Gallons
 
- 
Dimensions: 68" L x 14" W x 8" H
 
- 
Weight: 15 lbs
 
- 
Material: FDA-Approved Polyethylene
 
- 
Wall Thickness: Approx. 0.25"
 
- 
Color: Natural (Semi-Translucent)
 
- 
Design: Low-Profile Rectangular
 
- 
Fittings: Blank (no pre-installed fittings)
 
- 
Manufacturing Location: Idaho, USA
 
- 
Application: Fresh, Grey, or Black Water Storage
 
Shipping & Warranty
Ships from Idaho (Zip Code: 83605) under Freight Class 250. Liftgate service available during checkout for residential or non-dock deliveries.
Backed by a 1-Year Limited Warranty against defects in material and workmanship.
Price Match Guarantee
At Tank Superstore, we ensure the best value. If you find the 18 Gallon Custom Roto-Mold RV Holding Tank (Part #H-328) at a lower price from an authorized dealer within 6 months, we’ll match the price and refund the difference.
Contact: info@tanksupplydirect.com