This is a start capacitor designed for intermittent duty (usually a 3-second start cycle)

Featuring a 3/8" NPT connection and a durable rubber seat poppet

ensuring long-term reliability in plenum environments or utility rooms

or if the blower continues to run indefinitely after the system has cooled below 105°F

Simplified Installation: Includes a Molex front lock connector and standard mounting hardware to reduce time on the job site

Rheem-Ruud 42-21786-81 Relay This is a start capacitorThe Rheem Ruud 42 21786 81 Relay is a specialized 24V component engineered for precise defrost cycle management in residential and commercial heat pump systems. This OEM Rheem defrost relay features a complex 2DPDT and 1SPST (Double Pole Double Throw and Single Pole Single Throw) contact configuration, allowing it to simultaneously control multiple high voltage and low voltage circuits. This is critical for synchronizing the reversing valve, auxiliary