18 Gallon Custom Roto-Mold RV Holding Tank (MPN: H-381)

Description

The Custom Roto-Mold 18 Gallon RV Holding Tank (Part# H-381) is purpose-built for compact mobile applications, including RVs, camper vans, marine vessels, and specialty vehicles. Its long, narrow profile is ideal for mounting in tight floor channels, underbelly cavities, or beneath benches.

This tank is manufactured from FDA-approved polyethylene resin and molded using a seamless rotational process, delivering outstanding strength and leak resistance. Certified under FDA 21 CFR 177.1520 (1) 3.1 and 3.2, it's suitable for storing potable water, grey water, or black water in both residential and commercial transport setups.

Whether you're retrofitting or building new, the H-381 tank provides a reliable, lightweight solution for your water storage needs.

Key Features

• Seamless One-Piece Construction: Rotationally molded with no seams, reducing potential leak points and ensuring long-term durability.
• FDA-Approved Polyethylene Resin: Meets stringent food-grade standards for storing potable, grey, or black water.
• Slimline Design: Measures only 11" wide and 8" high—ideal for tight spaces, narrow floor channels, or horizontal mounting.
• Blank Configuration: Ships without fittings, allowing for fully customizable plumbing setups with optional kits.
• Lightweight Build: Weighs just 14 lbs for ease of handling and installation.
• Versatile Use: Suitable for a range of mobile and stationary liquid storage needs—RVs, vans, boats, concession trailers, and more.
• Semi-Translucent Material: Enables visual level checks without the need for sensors.
• Proudly Made in the USA: Manufactured in Idaho under strict quality control for consistent, dependable performance.
  

Specifications

• Product Type: RV Holding Tank
• Part Number: H-381
• Capacity: 18 Gallons
• Dimensions: 67" L x 11" W x 8" H
• Weight: 14 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

Ships FOB from Idaho (Zip Code: 83605) under Freight Class 250. Liftgate delivery available upon request.

Backed by a 1-Year Limited Warranty against defects in materials and workmanship.

Price Match Guarantee

We guarantee the lowest price. If you find the 18 Gallon Custom Roto-Mold RV Holding Tank (H-381) advertised for less by any authorized retailer within 6 months, we’ll match the price and refund the difference.

Contact: info@tanksupplydepot.com