Pressure Control, DPST Switch Only, 1/2" Conduit Opening, 50 Psi to 240 Psi, Nema 3R Enclosure, No Adjustment Knob

Pressure Control, DPST Switch Only, 3/4" Conduit Opening, 50 Psi to 450 Psi

Two Pole High Pressure Control, DPST, Open High Close Low, 50 Psi to 450 Psi, Lockout ( Requires Manual Reset ) Differential, 36" Capillary with 1/4" Flare Nut, 525 Psi Max Bellows Overpressure, Includes Universal Mounting Bracket, "All Range" for R-12, R-22, R-134A, R-500 and R-502