40 Gallon Custom Roto-Mold RV Holding Tank (MPN: H-309)

Description

The Custom Roto-Mold 40 Gallon RV Holding Tank (Part #H-309) offers a dependable and spacious solution for mobile liquid storage in RVs, trailers, marine systems, and off-grid builds.

Engineered with a seamless rotational molding process, this tank provides excellent durability and long-term resistance to cracks, chips, and leaks, even in demanding travel or outdoor conditions.
Made from FDA-approved polyethylene resin, it complies with FDA Regulation 21 CFR 177.1520 (1) 3.1 and 3.2, making it suitable for potable, grey, or black water storage.

Need help choosing or installing your tank? The Tank Superstore team is here to provide expert assistance tailored to your project needs.

Key Features

• Seamless Rotationally Molded Construction: One-piece tank design maximizes structural integrity and eliminates weak points.
• FDA-Compliant Material: Built with food-grade polyethylene for safe potable water and wastewater containment.
• Multi-Purpose Use: Ideal for storing fresh, grey, or black water in RVs, food trucks, and marine vessels.
• Ultra Low-Profile Design: At only 6.75" tall, it’s perfect for underbody or low-clearance installations.
• Lightweight but Durable: Weighs just 26 lbs, making it easy to handle and install without compromising strength.
• Blank Configuration for Customization: Ships without fittings—compatible with DIY kits for a tailored plumbing setup.
• Proudly USA-Made: Manufactured in Idaho by Custom Roto-Molding, ensuring consistent quality and durability.
  

Specifications

• Product Type: RV Holding Tank
• Part Number: H-309
• Capacity: 40 Gallons
• Dimensions: 57.75" L x 42" W x 6.75" H
• Weight: 26 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 lowest price. If you find the 40 Gallon Custom Roto-Mold RV Holding Tank (Part #H-309) at a lower price from an authorized retailer within six months, we’ll match it and refund the difference.

Contact: info@tanksupplydirect.com