Compatibility is specific to the valve series

or incorrect pitch in the venting system causing heat to backup into the block

and Power-Fin series

without causing the excessive pressure drop often associated with high-resistance aftermarket pleats

Browning 1VP44X1/2 Sheave 322056-301 Compatibility is specific to theThe Browning 1VP44X1 2 Sheave is a high grade variable pitch pulley engineered for precise performance in HVACR belt drive systems. Constructed from rugged cast iron, this single groove sheave provides the structural integrity required for heavy duty fan, blower, and pump applications. It features a 1 2" fixed bore designed for a secure fit on standard motor shafts without the need for additional bushings. With an outside diameter (OD) of 4. 15", this