Lambro Industries 181 Class 1 Air Connector for Bath Fan Exhaust – 5 Layer Size:4 inch x 25 foot UL expose red core thread &

expose red core thread & light with the tekfire

Energy efficient

paint and corrosion

made with thermal plastic rubber

dries quickly

Lambro Industries 181 Class 1 Air Connector for Bath Fan Exhaust – 5 Layer Size:4 inch x 25 foot UL expose red core thread &Bath Fan Duct The Lambro 4 inch x 25 foot UL 181 Class 1 air connector ideally serves bath fan exhaust and any other general venting applications that require the expulsion of moist air and humidity from the home. The manufacturer process constructs this bath fan duct from multiple layers of aluminum polyester material bound together with a fire retardant adhesive that can withstand a maximum operating temperature of 257F. A galvanized wire helix