PENBERTHY INJECTOR GH1 3/4X1X1|The Penberthy Series GH Jet Pump (Eductor) is designed to operate well in a range of liquid or solid pumping applications. The GH series Jet Pumps or High Head Jets have a discharge head of 50 feet with 75 PSIG of motive steam pressure. The GH series uses a motive steam pressure range of 35-150 PSIG and has a suction lift of up to 20 feet with 75 PSIG of motive steam pressure. These Penberthy Jet pumps are 3/4 inch NPT and made of BRONZE.