3/8" 1/2" galvanized iron HVAC air handle damper quadrant

Material: Galvanized sheet

Surface treatment: Zinc plated

Access size: square 1/4” and 3/8

   For damper up to 30 inches

   Handle will never drop from the quadrant when the screw      is loosely fixed

   Handle never jammed at the MAX or MIN position

   Damper Regulator with End Bearing

Galvanized sheet metal dial regulator set with saddle

Used for  damper blade size from 4”-30”

   3/8” Square Hole

   Base and spring are Galvanized Steel

   Knob and Sprocket are manufactured from Zamac              material