1/8” or 1/4″ 4-port mini air Regulator made of glass-filled Nylon with Buna-N seals. The supply pressure is 250 psi with a standard operating range of         5 – 125 psi, 3 – 60 psi and 3 – 20 psi. The temperature range is 40˚  F to 120˚  F. It has a 3-position non-rising adjustment knob which can be detached to make it tamper resistant. Also, a tamper-proof cap is included. This unit is lightweight, panel-mountable and the relieving style is standard.