HIG VELOCITY DAMPER (SMG)   - in stock - 

NOTES :

- For controlling or cutting off air volume in high velocty duct systems. May be controlled manually or with motor.
- 2" x 1/8" flat bar frame sized for insertion in duct.
- Control rod (shaft) may be 1/2" round or 3/8" x 3/8" square.
- Full stopper inside with gasket.

Specify:
- diameter Dia
- round or square shaft.

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