Rheem-Ruud 42-25106-01 Defrost Relay this 5-foot steel tube is

this 5-foot steel tube is a necessary gas/smoke detection accessory for any technician installing Conventional and Intelligent Duct Smoke Detectors

This HVAC furnace gasket is essential for restoring airtight integrity during the replacement of the collector box or inspection of the heat exchanger assembly

For a complete seal

When the air temperature hits the 130°F threshold

Rheem-Ruud 42-25106-01 Defrost Relay this 5-foot steel tube isThe Rheem Ruud 42 25106 01 Defrost Relay is a heavy duty 24V DPDT (Double Pole Double Throw) component designed for precise defrost cycle management in residential and commercial condensing units. Engineered to replace aged or pitted mechanical relays, this HVAC defrost control relay handles switching for both the outdoor fan motor and the compressor contactor circuit simultaneously. It operates with a 24V coil voltage, ensuring seamless integration