82 sq in effective diaphragm area remains consistent with original specifications

the K1-3 features heavy-duty forged brass construction capable of handling vacuum and pressures up to 5

checking the 815-970 Microfarad rating with a multimeter is your first step

While both utilize pneumatic diaphragms

White-Rodgers 3L09-16 Limit Switch 82 sq in effective diaphragmThe White Rodgers 3L09 16 is a professional grade 1 2" bimetal disc limit switch engineered for critical temperature regulation in residential and commercial HVAC systems. This board mounted limit control is built for high speed contact separation, ensuring a rapid response when industrial safety thresholds are reached. It features a fixed open temperature of 150F and a fixed close temperature of 130F, operating on an open on rise switch action. With