- Square or rectangular spring actuated curtain-type fire damper for horizontal or vertical mount
- 4 1/4″ standard roll formed out-of-airstream frame
Standard Frame 1 ½ Hour Curtain-type Fire Damper Out-of-Airstream
3290 Lien St
Rapid City, SD 57702
2111 N Louise Cir
Sioux Falls, SD 57107