PENTAIR CH/CHK 50 HIGH HEAD SERIES PUMP, SINGLE PHASE, 5 HP — Commercial self-priming bronze main circulation pump with integral hair and lint strainer with stainless steel basket. 6" suction x 4" discharge, flanged connections. 3450 rpm, 3 phase, 60/50 HZ, and 208 volt or 220/440 volt motors. NSF Listed.