ZoneFirst SPRD-20X8 Damper Els PW 17895 Key Benefits Precision Airflow: The

Key Benefits Precision Airflow: The 36-degree pitch is specifically calibrated for high-static pressure environments

providing superior durability and corrosion resistance compared to standard copper components

Precision Control: The two-position 24V operation integrates seamlessly with standard building automation systems and thermostats

making it an ideal choice for refrigeration merchandisers

This factory-authorized kit is the engineered successor to the SP20129

ZoneFirst SPRD-20X8 Damper Els PW 17895 Key Benefits Precision Airflow: TheThe ZoneFirst SPRD 20X8 is a heavy duty barometric bypass damper engineered for precise static pressure regulation in multi zone residential and light commercial HVAC systems. This 20" x 8" mechanical unit utilizes a field adjustable weighted arm to facilitate effective bypass air management without the requirement for complex electronic controls or wiring. As zone dampers close and duct pressure rises, the ZoneFirst SPRD 20X8 automatically opens to