Piston Balance Regulator:

MAXIMUM WORKING PRESURE 3500 PSI (240 BAR) LOW PRESSURE PORT SWIVEL ASSEMBLY FOR VERSATILE POSITIONING ADJUSTABLE INTERMEDIATED PRESSURE OUTPOUT BALANCED PISTON 135~ 150 PSO FOUR 3/8 24 UNF INTERMEDIATE PRESSURE PORTS TWO 7/16 20 UNF HIGH PRESSURE CHROMIUM PLATED BRASS BODY STAINLESS STEEL SPRINGS NEOPRENE/NITRILE " O" RING