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6500 Gallon Double Wall Tank

also called double containment tank, dual wall tank, double walled tank, day tank
6500 Gallon HDPE Double Wall Tank
Images may be inaccurate. See specs table below to ensure accuracy.
Quick Summary
Part# MPN: DW6500-120 / Store ID: X7160879
Dimensions 120" Diameter x 207" Height
Liquid Access 1 Manway / Lid
Weight / Ship Class 2951 lbs. / Ship Class 250
Ships From IA
Drawing Ace Roto-Mold DW6500-120 Drawing
Used for chemical and liquid storage requiring secondary containment
Double wall structure provides 110 - 120% containment around primary tank
Complies with FDA standards 21 CFR 177.1520 (1) 3.1 and 3.2
1.7 Specific Gravity (14.1 lb / gal)
Maintenance free - won't rust, chip, or dent

20+ Week Lead Time

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Regular Price: $20,165.99

Special Price $15,295.99

24% Off MSRP Guaranteed for 4 days only



Ace Roto-Mold / Den Hartog 6500 Gallon Double Wall Tank, part# DW6500-120, is an industrial grade chemical containment tank. It's primarily used for chemical storage in commercial and industrial applications. This double wall tank acts as a tank within a tank. The outer black tank provides 110 to 120% containment for the internal tank.

This plastic double walled tank is constructed with rotationally molded polyethylene resin. It's seamless design makes it durable, and resistant to cracks and dents. UV inhibitors help protect liquid contents against direct sunlight in both indoor and outdoor environments. Double wall construction keeps precipitation and debris from entering the primary tank. This double wall tank complies with FDA standards 21 CFR 177.1520 (1) 3.1 and 3.2 for the storage of potable water. It's 1.7 specific gravity rating makes it ideal for chemical storage and containment.

The Ace Roto-Mold 300 gallon double containment tank features a 16 inch threaded vented manway with lid. Inlets, outlets, and other add-ons are typically customized to your needs. Ace / Den Hartog designed their dualline tanks to be highly customizable. There are 3 fitting flats on the top for custom plumbing. The secondary tank features a 1" service fitting in case the secondary containment tank requires evacuation.

Ace Roto-Mold backs this dualline tank with a 3 year manufacturer warranty. This tank ships fully assembled - helping you save on field assembly costs. These double wall tanks also come in 65, 120, 150, 500, 1000, 1500, and 2000, 2500, 3000, 3500 gallon sizes.

Let's solve your chemical storage needs with the 2500 gallon double walled tank from Ace Roto-Mold / Den Hartog. National Tank Outlet is dedicated to delivering the ultimate solution in chemical compatibility and performance. Contact our sales team and double wall tank experts with your questions or customization requirements.
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Size Comparison

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Additional Information

Store ID X7160879
Manufacturer Info
Product Part # DW6500-120
Manufacturer Ace Roto-Mold
Manufacturer Warranty 3 Year Warranty
Technical Drawing Ace Roto-Mold DW6500-120 Drawing
Size Info
Capacity (Gallons) 6500
Dimensions 120" Diameter x 207" Height
Weight (lbs) 2951
Liquid Accessibility
Liquid Access 1 Manway / Lid
Manway / Lid 1 16" Threaded Vented Manway
Resin Features
Color Natural White
Material Polyethylene
FDA Approved Resin Yes (Food Grade, Potable)
UV Inhibitors Yes
Translucent No
Max Temp Allowed 120° F / 48° C
Physical Features
Product Type Double Wall Tank
Specific Gravity 1.7
Tank Shape Cylindrical
Tank Usability Stationary
Environment Above Ground
Gallon Indicators No
Pressurized Use No
ANSI / NSF 61 Approved Resin Yes
ASTM D1998 No
Shipping Info
Shipping Locations Iowa
Shipping Zip Codes 51238
Ship Freight Class 250
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