Relay & Start Capacitor Kit (Hard Start Kit) 1/2 - 5hp - Two Wire - 300% Multiplier - 115 to 288V - UL Listed - Part No. SPP5 - One wire to the common and one wire to the hermetic terminal post on dual caps, one wire to each post on single capacitors. Increases compressor starting torque,  increase the life of a newer compressor and may prolong the life of an older compressor . For use on permanent split capacitor (P.S.C.) single phase AC or heat pump systems. Made by Supco Corp.

Please note: Picture is a 1/2 to 10hp hard start but listing is for a 1/2 to 5hp hard start kit.