All-Flo - Model 1/2-A050 - Plastic Diaphragm Pumps - Brochure

Air Inlet: 1/4" FNPT.  Liquid Inlet: 1/2".  Liquid Discharge: 1/2".  Connection Type: FNPT/FBSPT (Threaded).  Max Suction Lift Capability: 15 ft-H₂O (4.6 m-H₂O) Dry, 26 ft-H₂O (7.9 m-H₂O) Wet.