What is the difference between A/CP-SP and ACI/CP-SP

This valve is the direct factory replacement for maintaining the manifold pressure specifications outlined in the National Comfort Products technical manual

allowing for a seamless drop-in installation without the need for mounting modifications or bracket adjustments

and rotation match

a critical feature for sustained outdoor performance

Lau 38209601 Shaft Freon What is the difference betweenThe Lau 38209601 Shaft is a precision engineered blower shaft replacement designed for high demand belt drive blower assemblies. Fabricated from solid 1018 cold rolled steel, this 3 4" diameter shaft provides the structural rigidity required to maintain alignment in centrifugal fan systems. The 20" length is optimized for standard air handler configurations, though it can be field cut to meet specific dimensional requirements for residential or