the DCL 033 is a uni-flow filter drier compatible with a wide range of refrigerants

it provides a secure seal to the vacuum tubing

Always verify your specific model number

The red color-coded housing allows for immediate identification during field service

Zonefirst SPRD-18 Damper Els PW 17895 the DCL 033 is aThe Zonefirst SPRD 18 is a professional grade 18 inch round barometric bypass damper engineered to maintain critical static pressure relief in multi zone HVAC applications. As zone dampers close, this single blade mechanical component automatically responds to rising pressure, diverting excess airflow to the return plenum or a dump zone to prevent coil icing and blower motor strain. Unlike motorized alternatives, the SPRD 18 utilizes a counter