Rugged, 22-gage rust resistant plated steel housing

4" steel duct adapter with integral back draft damper pre-assembled to housing.

Plug-in totally enclosed permanently lubricated motor.

Spring-mounted white painted low profile steel grille.

Mounting brackets included for installation between ceiling joists or drop ceilings.

Performance: 80 CFM @ 2.5 sones.

UL/cUL and CSA listed.

HVI (Home Ventilating Institute) certified.

DAMPER CONTRUSTION:

22-gage galvanized steel frame.

Stainless steel closure springs.

High heat, non-asbestos ceramic blanket.

Replaceable 165 degree F fusible link.

UL/cUL listed "Ceiling Fire Stop Damper" with up to 3-hour fire resistance rating.