Broan-NuTone® 636 Steel Roof Cap for 3-Inch or 4-Inch Round Duct w/ Damper & Birdscreen, Black SA10739MM-3.5 Includes snap track mounting and

Includes snap track mounting and outdoor balance point thermostat

Material: Scheduled 80 Pipe|Threaded Rod

Sell Sheet

TRION® 272649-08-102 Air Bear 20 x 25 x 4

Broan-NuTone® 636 Steel Roof Cap for 3-Inch or 4-Inch Round Duct w/ Damper & Birdscreen, Black SA10739MM-3.5 Includes snap track mounting andBroan NuTone 636 Steel Roof Cap for 3 Inch or 4 Inch Round Duct w Damper & Birdscreen, Black Select the Broan NuTone 636 Roof Cap to provide reliable rooftop ventilation. Features a black enamel finish and is designed for use with 3 in. or 4 in. round ducts. Includes a built in back draft damper, and protective bird screen to prevent small pests from entering duct. Specifications INSTRUCTIONS