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Out of stock
By
Plastec
Out of stock
Model
AD04
ID
17366
Plastec adjustable damper for 4" PVC duct, with 4.5" inside diameter.
Features
- All Internal Parts Are Plastic
- Furnished With Locking Quadrant Damper Allowing For Permanent Position Set
- Allows For Less Than 5% Air?ow Restriction
- Offers An Approximate 95% Seal
- 90º Damper Plate Operation
- Can Be Installed Vertically Or Horizontally
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