Tjernlund
BD-4 SPRING RETURN BACK DRAFT DAMPER F/4 DUCTS
Part #TJEBD4
MFG #BD-4
Brand : Tjernlund
Manufacturer Name : Tjernlund
- Duct Fan Back Draft Damper
- Item Spring Loaded Back Draft Damper
- Used On Duct Booster Fan
- Includes Galvanized Steel Collar and Lightweight Aluminum Damper Blades
- Install Instructions
- Spring Loaded for Positive Closure
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