Bypass Dampers

Round Static Pressure Regulating Damper
This barametric by-pass damper is a single blade, counter balanced weighted damper that operates on air pressure in order to control the flow of by-pass air. The SPRD has an adjustable arm and weight to maintain the correct amount of pressure in the duct system.
Part # Item Name
260-0040 ZoneFirst SPRD 10" Bypass Damper
260-0042 ZoneFirst SPRD 12" Bypass Damper
260-0045 ZoneFirst SPRD 14" Bypass Damper