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Damper Quadrant DR30
1.Our Damper Quadrant 3/8" dial regulator is the most popular models.
2.It can enhanced air tightness and reduce rattle.
3.The frame is marked to show the exact position of the damper.
4.The Damper Quadrant can be installed on rectangular and round ducts.
5.This is for dampers to : 500mm (20")
6.Set Includes:
Dial parts with handle (3/8" spring loaded end spindle)
Wing nut, washer&bolt (3/8"Square spindle)
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