Broan-NuTone® 634M Steel Roof Cap for 6-Inch Round Duct with Backdraft Damper and Bird Screen, Black Size_3in x 4in Manufactured for strength and durability

Manufactured for strength and durability

Green LED indicator tells whether the device is operational

providing unmatched productivity for steel pipe installations

Cap Style with Rechargeable Headlamp

Broan-NuTone® 634M Steel Roof Cap for 6-Inch Round Duct with Backdraft Damper and Bird Screen, Black Size_3in x 4in Manufactured for strength and durabilityBroan NuTone 634M Steel Roof Cap for 6 Inch Round Duct with Backdraft Damper and Bird Screen, Black The attractive Broan 634M roof cap is the perfect finish for your ventilation system. The built in back draft damper eliminates cold air from entering the home. The bird screen stops unwanted visitors from gaining entry. Specifications INSTRUCTIONS