The Rheem-Ruud 42-24194-82 Pressure Switch is a critical safety component designed for furnace pressure monitoring and draft verification

it provides precise actuation for air/inert gas (5-150 PSI) and water (1-125 PSI) lines

This is a mechanical vapor tension dial thermometer that operates solely on physical pressure changes

It is the standard service part for unit sizes 03-15

Setra 2641R25WB11T1C Pressure Transducer Els PW 17895 The Rheem-Ruud 42-24194-82 Pressure SwitchThe Setra 2641R25WB11T1C is a industry standard low differential pressure transducer designed for precise monitoring in high stakes HVAC environments. Built with an all stainless steel micro tig welded capacitive sensing element, this unit delivers 1% FS accuracy and superior long term stability without the drift common in lower grade sensors. It features a bidirectional pressure range of 0. 25" WC, making it an essential component for tracking air