40 Gallon Custom Roto-Mold RV Holding Tank (MPN: H-308)

Description

The Custom Roto-Mold 40 Gallon RV Holding Tank (Part #H-308) delivers a rugged and dependable solution for liquid storage in RVs, trailers, marine vessels, and custom mobile applications.

Engineered with seamless rotational molding technology, this tank resists cracks, leaks, and deformation, even in rough terrain and high-vibration environments.
Manufactured using FDA-approved polyethylene resin, it meets FDA Regulation 21 CFR 177.1520 (1) 3.1 and 3.2, making it ideal for fresh, grey, or black water containment.

Backed by Tank Superstore's expert team, you’ll receive guidance every step of the way—from selection to installation planning.

Key Features

• Seamless One-Piece Construction: Eliminates seams and welds to maximize strength and long-term performance.
• FDA-Compliant Material: Made from food-grade polyethylene resin for safe potable and wastewater use.
• Versatile Application: Suitable for black, grey, or fresh water in RVs, tiny homes, food trucks, and boats.
• Low-Profile, Wide Design: The 9" height allows flexible installation in shallow compartments or undercarriages.
• Durable & Lightweight: Weighs only 20 lbs, making it easy to maneuver while maintaining impact resistance.
• Custom-Ready Setup: Ships blank (no fittings), giving you full flexibility for custom installations using a DIY fitting kit.
• USA Made: Proudly produced in Idaho by Custom Roto-Molding, known for exceptional quality and consistency.
  

Specifications

• Product Type: RV Holding Tank
• Part Number: H-308
• Capacity: 40 Gallons
• Dimensions: 54.75" L x 27" W x 9" H
• Weight: 20 lbs
• Material: FDA-Approved Polyethylene
• Wall Thickness: Approx. 0.25"
• Color: Natural (Semi-Translucent)
• Design: Rectangular, 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’re committed to value. If you find the 40 Gallon Custom Roto-Mold RV Holding Tank (Part #H-308) offered at a lower price by an authorized retailer within six months, we’ll match it and refund the difference.

Contact: info@tanksupplydirect.com