18 Gallon Custom Roto-Mold RV Holding Tank (MPN: H-299 [OR])

Description

The Custom Roto-Mold 18 Gallon RV Holding Tank (Part #H-299 [OR]) is built to meet the rugged demands of mobile liquid storage in RVs, trailers, campervans, food trucks, and marine environments.

Constructed with a seamless rotational molding process, this tank resists cracks, chips, leaks, and long-term structural failure caused by road vibration or external impact.
Crafted from FDA-approved polyethylene resin, the tank complies with FDA Regulation 21 CFR 177.1520 (1) 3.1 and 3.2, making it safe for potable water, as well as grey or black water storage.

Whether you’re customizing a van build or replacing an old holding tank, the Tank Superstore team is ready to help you select the right product for your project.

Key Features

• Seamless One-Piece Construction: Enhances durability and eliminates common leak points.
• FDA-Compliant Polyethylene Resin: Approved for potable water use and safe for black or grey water containment.
• Multi-Purpose Design: Ideal for fresh, grey, or black water storage in mobile and off-grid systems.
• Wide, Low-Profile Build: With just a 5.5" height, this tank is perfect for tight spaces such as under-floor compartments.
• Lightweight & Strong: Weighs only 17 lbs, making it easy to handle while maintaining structural toughness.
• Blank Configuration: Ships without fittings—ideal for fully customized installations using optional DIY fitting kits.
• Made in the USA: Manufactured in Idaho by Custom Roto-Molding, ensuring high quality and consistent performance.
  

Specifications

• Product Type: RV Holding Tank
• Part Number: H-299 [OR]
• Capacity: 18 Gallons
• Dimensions: 45.25" L x 27.5" W x 5.5" H
• Weight: 17 lbs
• Material: FDA-Approved Polyethylene
• Wall Thickness: Approx. 0.25"
• Color: Natural (Semi-Translucent)
• Design: Rectangular, Ultra Low-Profile
• Fittings: Blank (no pre-installed fittings)
• Manufacturing Location: Idaho, USA
• Application: Fresh, Grey, or Black Water Storage
  

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

At Tank Supply Direct, we guarantee the best value. If you find the 18 Gallon Custom Roto-Mold RV Holding Tank (Part #H-299 [OR]) for a lower price from an authorized retailer within six months, we’ll match it and refund the difference.

Contact: info@tanksupplydirect.com