Groz Air Regulators are used to maintain a steady outlet pressure while being unaffected by variations or fluctuations in the inlet pressure. These regulators step down the airline pressure and can be set to any desired pressure below the inlet air pressure. This is aluminum die cast and is equipped with a non-raising "press to lock" adjusting knob for locking in at any set pressure. This can be installed in any position and does not be vertically mounted.