Johnson Controls P70MA-2 Pressure Control

Single Pole Dual Pressure Control, SPST Switching, 20" Wc to 100 Psi Low Pressure, 7 Psi to 50 Psi Differential Low Pressure, 100 Psi to 500 Psi High Pressure Range, Lockout ( Requires Manual Reset ) Differential, 1/4" Female NPT Connection, For Ammonia