UE J21K-232 Differential Pressure Switch: 0 to 25 PSID

United Electric J21K Differential Pressure Switch - 1 SPDT Switch Output. Adjustable Range: 0 to 25 PSID. Working Pressure: 30" HgVac to 110 PSI; Proof Pressure: 25 PSI. Deadband: 0.6 to 1 PSI. Phosphor Bronze Bellows, 1/4" NPTF Pressure Connections. Gasketed Epoxy-Coated Diecast Aluminum Enclosure. Model formerly designated with factory stock number J21K-232 (9559)