Description Manuals Videos Articles Popular Accessories Clemco 03594 - CPF-20 Pressure Regulator Pressure regulator, less gauge for CPF-20 Air Filter. 3/8 NPT, Small Body CPF-20 Filter Cap Item # 5 Manual Customers Also Viewed Clemco CPF-20 and CPF-80 Pressure Gauge #00024 $43.90 Clemco CPF 20 Breathing Air Filter System wit… #03578 $372.59 Clemco CPF Filter Cartridge #03547 $55.63