Barksdale
Product Type: Pressure Switches
Barksdale DPD1T Series Differential Pressure Switch, 1/8" FPT, 125/250/480 VAC, 125/250 VDC, 10/3/0.5/0.25 A, 0.03 to 3 PSI, SPDT, NEMA 4, 17-7 PH Stainless Steel Diaphragm/Viton Seal, Single Setpoint Housed, Differential Pressure Switch.