120/225 Gallon Rhino Tuff Tanks Complete Gravity Feed Tank System (MPN: RTT-6420)

Description

The Rhino 120/225 Gallon Gravity Feed Tank System is a high-capacity, space-efficient fluid storage solution engineered for demanding commercial, agricultural, and fleet operations. Combining a 120-gallon top tank with a 225-gallon base, this stackable setup delivers a total of 345 gallons while maintaining a compact 3' x 3' footprint.

Built from natural virgin high-density polyethylene, this system provides long-term resistance to corrosion and compatible chemicals. Brass-threaded inserts, integrated site gauges, and stack-ready features make it an easy-to-use and reliable choice for storing lubricants, DEF, diesel, or other non-flammable fluids.

Key Features

• Total Capacity: 1 x 120 Gallon Tank and 1 x 225 Gallon Tank (345 Gallons Total).
• Gravity Feed Design: Includes a 24" stand for elevated dispensing without a pump.
• Complete System: Package includes drip tray kit, brass spring valves, and accessory fittings.
• Efficient Port Setup: 2" top opening, 1" desiccant breather opening, and 2" center fill for versatility.
• Secure Stacking: Interlocking molded ridges ensure tank stability—no conversion brackets required.
• Pump-Ready: Six molded-in brass inserts allow easy mounting of a side pump plate.
• Integrated Drain Port: Industry-exclusive molded-in 1" NPT brass bushing for clean drainage.
• Visual Level Monitoring: Molded-in site gauge and semi-transparent tank body show real-time fluid levels.
• Built to Last: Constructed from natural virgin HDPE, highly resistant to cracking and corrosion.
• Standard Footprint: All Rhino Tuff tanks share a 3' x 3' base for seamless modular integration.
  

Specifications

• Model: RTT-6420
• Capacity: 1 x 120 Gallon Tank and 1 x 225 Gallon Tank (345 Gallons Total)
• Assembled Dimensions: 36" L x 42" W x 105" H
• Top Openings: 2" for pump or vent
• Other Openings: 1" for desiccant breather or remote fill, 2" center fill
• Pump Mounting: Six molded-in brass inserts for pump plate
• Drain Port: 1" NPT molded-in brass bushing
• Material: Natural virgin high-density polyethylene
• Visual Gauge: Molded-in site gauge and semi-transparent walls
• Footprint: Standard 3' x 3' for stackable configuration
  
• Shipping Weight: 345 lbs
• Shipping Dimensions: 44 x 36 x 87 in
• Number of Tanks: 2
• Two (2) Stackable Tanks: One (1) 120 Gallon and One (1) 225 Gallon tank
• Manufacturer: Rhino Tuff Tanks - Maple Lake, MN
• Manufacturer Part Number: RTT-6420
• Ships From: Maple Lake, MN

Applications

• Gravity-feed storage and dispensing of oils and lubricants in shops and service bays
• Fleet, farm and industrial fluid management
• Mobile or stationary setups where floor space is limited

Frequently Asked Questions

What are the dimensions?
Assembled Dimensions: 36" L x 42" W x 105" H; Footprint: Standard 3' x 3' for stackable configuration.

How much does it hold?
Capacity: 1 x 120 Gallon Tank and 1 x 225 Gallon Tank (345 Gallons Total).

How much does it weigh?
Shipping Weight: 345 lbs.

How long does it take to ship, and where does it ship from?
The manufacturer lead time is 2-5 Weeks, and it ships from Rhino Tuff Tanks in Maple Lake, Minnesota. Shipping is calculated at checkout.

What warranty does it come with?
Per Rhino Tuff Tanks: it carries a Limited Lifetime Warranty (Gravity Feed Systems). Coverage is against manufacturing defects.

Who makes it?
Rhino Tuff Tanks of Maple Lake, Minnesota (part number RTT-6420). Tank Supply Direct sells and supports it.

Manufacturer Documents

• Rhino Tuff Tanks product page - 120/225 Gallon Gravity Feed Tank Package
• RTT Spec Sheet - 500394
• Rhino Tuff Tanks Gravity Feed System Installation & Assembly Instructions
• Rhino Tuff Tanks 2024 product catalog (PDF)

Shipping and Warranty

• Manufacture Lead Time: 2-5 Weeks
• Ships From (State): MN

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.

Warranty Information
Warranty period - Limited Lifetime Warranty (Rhino Tuff Tanks warranty period for Gravity Feed Systems).

Rhino Tuff Tanks Warranty Policy
Rhino Tuff Tanks (RTT) stands behind all of its products and will repair or replace, at its discretion, any product found to be defective due to a manufacturing defect. Items sold, but not manufactured by Rhino Tuff Tanks (including materials, equipment, or components such as pumps, hoses, valves, etc.) are subject to the warranty, if any, of the original manufacturer. Rhino Tuff Tanks will provide the purchaser with reasonable assistance in making any claim for breach of these warranties; however, if the original manufacturer denies such warranty claims, Rhino Tuff Tanks has no additional liability. Rhino Tuff Tanks is not responsible for fluid loss and/or associated cleanup costs. The warranty does not apply to any products that have been subjected to an accident, adjustment, improper installation, misapplication, misuse, modification, neglect, repair, including but not limited to improper maintenance, or use of unauthorized parts or attachments. Warranties and returns will not be honored without the original receipt of purchase and images of the damaged or defective product. Warranties do not apply to floor or display models, out-of-box models, and close-out or discontinued items.

For warranty details or to start a claim, contact Tank Supply Direct at info@tanksupplydirect.com. Source: Rhino Tuff Tanks warranty page