TNP11E2PR Pres Air Trol Pressure Switch, PresAirTrol Tinytrol, 21A, 1/8"b, SPDT,2psi TNP-111R-2PR PATTNP111R2PR 610903 9171-52 TNP-111E-2PR Tinytrol Pressure Switch1/8"NPT, no panel mount, 2psi, 21 amp, SPDT

PR11120A Pres Air Trol Pressure Switch, PresAirTrol Side Spout, 21A, 1/8"b, SPDT Adjustable from 1-5psi, 1/8" side nipple, mounts to panel with self-tapping #4 screws. Rated at 21 ampsHergair# 6731-10P:A:T# PR11120ASPDT

PM11120E Pres Air Trol Pressure Switch, PresAirTrol Thd Stem, 21A, 1/8"mpt, SPDT PM11120A 610914 Adjustable from 1-5psi, 1/8"npt or 1/2" panel mount, rated at 21 ampsHergair# 6741P:A:T# PM11120ASPDT