Dampers are opened by air pressure differential and closed by gravity 16 gauge channel frame
Dampers are opened by air pressure differential and closed by gravity 16 gauge channel frame
Horizontal mount air down configuration Dampers are opened by air pressure differential and closed by gravity
Horizontal mount air up configuration Dampers are opened by air pressure differential and closed by gravity
Dampers are opened by air pressure differential and closed by gravity 16 gauge channel frame
Horizontal mount (air down) pressure relief Designed to open in negative or positive pressures for intake or exhaust air
Horizontal mount (air up) pressure relief Designed to open with negative or positive pressures for intake or exhaust air
Designed to open in negative or positive pressures for intake or exhaust air All aluminum construction Blade to blade linkage
Round damper designed for volume control 16 gauge galvanized channel frame Single galvanized blade is vee stiffened for extra strength and stability
Parallel blade operation designed for volume control 16 gauge galvanized channel frame
Opposed blade operation for precise volume control 16 gauge galvanized channel frame
3290 Lien St
Rapid City, SD 57702
2111 N Louise Cir
Sioux Falls, SD 57107
