Does this unit come with the mounting hardware

it ensures a perfect fit on the motor shaft

How do I know if I need the total rubber kit versus just a check kit

excessive soot buildup

providing robust performance for fans

Johnson Controls P74FA-5 Pressure Control Els PW 17895 Does this unit come withThe Johnson Controls P74FA 5 is a high performance differential pressure control designed for sensing pressure changes across oil filters or pumps in heavy duty commercial HVAC and refrigeration systems. This SPDT snap acting switch provides reliable lube oil protection, ensuring that compressors do not operate under insufficient oil pressure. Featuring an adjustable range of 8 to 60 psi and a fixed 1. 5 psi switch differential, this Penn P74 series