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Garage Exhaust / Indoor Fume Control

Ulok 420

Part Number: 3UL420X
The combination of an additional silicone coating with standard external helix as a scuff guard and a non-glue construction results in the industry standard high-temperature duct. Flame test UL94V-0 compliant.


Automobile exhaust hose reel
Gas exhaust control
Hot fume control
Hot air supply and removal
(not recommended for diesel applications).
A negative pressure fan system with ambient air inlet is recommended to maximize effectiveness and life of duct. It is important to size the duct diameter according to the exhaust output.

Product code: 3UL420X
Material: Fiberglass/Silicone U-Lok 420 with additional silicone coating
Construction: Mechanical bond, corrosion resistant helix. 
Diameters: 3" to 24" I.D. 
Bend radius: = 1.5" x I.D. 
Weight: 6" I.D. = 1.1 lbs/ft. 
Length: 25 ft. 
Colour: Metallic Grey

Compression Ratio: 5:1
Temperature range: -65°F to +500°F intermittent. 
*Also available with stainless steel helix

Ulok 420
Ulok 420
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