4DNX25GSI – 4DNX DIRECT DRIVE PLUNGER PUMP Home > Brands > CAT Pumps > Plunger Pumps > 4DNX25GSI – 4DNX DIRECT DRIVE PLUNGER PUMP Posted on September 29, 2016March 11, 2021 by tugz Technical Specifications Max Flow: 2.5 Min Pressure: 100 Max Pressure: 3000 Inlet Port Size: 3/4″GHF Discharge Port Size: 3/8″NPT RPM: 3450 Drive Type(s): Direct Material: Brass (BB)