AMT Pump 2874-95 Self-Priming Centrifugal Pump, Cast Iron, 3 HP, 3 Phase, 208-230/460 V, Curve A, 3" NPT Female Suction & Discharge Ports Clog-resistant impeller handles semi-solids up to 3/8" diameter for use in waste water drainage and processing Built-in flapper/check valve permits self-priming to 20 feet Cast iron with buna-n mechanical seal and O-ring Maximum operating temperature 180 degrees F 3" female NPT suction port, 3" female NPT discharge port