Kingston Model 159A Air Pressure Regulator is constructed from heavy cast brass, precision machined for efficient and smooth operation. Reinforced neoprene dia­phragm is highly resistant to oil, air and moisture to insure long wear and hard use. Supplied with 114″ gauge ports and capable of regulating from initial line pressure of up to 200 psi to a regulated pressure of 10-150 psi. The Kingston Model 159A Air Pressure Regulator will hold pressure constant regardless of the flow variation.