Resideo ZD6X10TZ Damper 320074-702 While it is an SPST

While it is an SPST pressure switch

OEM Performance: Ensures exact fit and function

the internal shaft support allows for mounting in any orientation without affecting the disc's 90-degree travel or repeatability

this 90-120F auto limit switch provides the exact electrical specifications required to maintain factory-spec pressure and airflow safety margins

but you must verify the specific temperature rating on your current limit control before installation

Resideo ZD6X10TZ Damper 320074-702 While it is an SPSTThe Resideo ZD6X10TZ Parallel Blade Zone Damper is a contractor grade solution engineered for rectangular duct zoning. This 6" Wide x 10" High unit features a power closed, spring return open configuration, making it the standard choice for "fail safe" normally open airflow requirements. Built with a rugged extruded aluminum frame and parallel blades, it maintains a low leakage seal (less than 1% at 0. 5 in. WC) while offering high performance HVAC