Part Number: 1163P15 (Switch assy diff pr) Part Number: 1163P18 (Pressure switch) Part Number: 1163P18-1 (Differential pressure switch) Part Number: 1163P18-2 (Switch, differential) Part Number: 1163P18-5 (Switch) Part Number: 1163P18-7 (Switch) Part Number: 1163P22 (Switch) Part Number: 1163P22-1 (Switch) Part Number: 1163P22-1W (Controller) Part Number: 1163P-42 (Ne) Part Number: 1163P7-1 (Switch) Part Number: 1163PCE (Gasket cover) Part Number: 1163PI (Dip8) Part Number: 1163R-40G2 (Comm con)