Call to Take Advantage of Delivery & Pickup!

Builder's Best UL 181 Flexible Foil Ventilation Duct, 4" x 8', Aluminum/polyester

Builders Best

This wire helix product features steel wire support with a multi-ply design of metalized polyester and aluminum/polyester laminate. It is UL® 181 listed and labeled as a Class 1 Air Connector.

UL® 181, Class 1 air connector label
Multi-ply design of metalized polyester and aluminum/polyester laminate
Steel wire support
3″ dia. has ¾” pitch
4–12″ dia. has 1″ pitch­
UL® sticker every 10 feet
Maximum velocity rating 5000 fpm

We Also Recommend

Seasons Comfort 14 Inch High-Velocity Metal Fan 360 Degree Tilt 3 Speeds FHV14
Seasons Comfort

Seasons Comfort 14 Inch High-Velocity Metal Fan 360 Degree Tilt 3 Speeds FHV14
Out of Stock
Comfort Gear Comfort Gear Portable Propane Heater, 5,500-10,000 BTU Outdoor & Emergency Indoor - PPH10
Comfort Gear

Comfort Gear Comfort Gear Portable Propane Heater, 5,500-10,000 BTU Outdoor & Emergency Indoor - PPH10
Out of Stock
Dura Heat Dura Heat 240 Volt Hard-Wired Electric Garage Heater, 5,000 Watt - EWH5100
Dura Heat

Dura Heat Dura Heat 240 Volt Hard-Wired Electric Garage Heater, 5,000 Watt - EWH5100
Ideal 2-1/2 In. To 4-1/2 In. 316 Stainless Steel Duct Clamp
Ideal

Ideal 2-1/2 In. To 4-1/2 In. 316 Stainless Steel Duct Clamp
4 x 12-Inch Brown Stampaire Steel Diffuser
Various

4 x 12-Inch Brown Stampaire Steel Diffuser