Its fully hermetic

Apply a small amount of pipe sealant to the external threads—do not use Teflon tape

375 clip ensures a firm thermal contact with copper tubing

Flanged Mounting: Designed for standardized airstream installation

York S1-028-10577-700 Fixed Blower Pulley Els PW 17895 Its fully hermeticThe York S1 028 10577 700 Fixed Blower Pulley is a precision engineered OEM replacement part designed for high demand HVAC blower motor applications. Built for industrial durability, this fixed sheave features a 1 3 16" bore size and a single groove configuration, accommodating a dry back V belt for consistent torque transfer. With an 11 3 4" outside diameter, it provides the exact mechanical advantage required to maintain calibrated cubic feet per