| Fantech 5ACC12RD Roof Mount Damper (12" x 12") |
 Manufactured from 19-gauge galvanized steel frame 2" deep with 1" flange. For quiet operation aluminum blades have felted edges. Pre-punched conduit hole knock-out. Class 1. Features: Outside Flange opening: 12" x 12" Recommended roof opening: 12-1/2" x 12-1/2" Blades open when ventilator comes on, close when airflow stops Galvanized 19-gauge, 2" deep steel frame with 1" flange Aluminum blades have felted edges for quiet operation Price: 24.99 |