The Series 100 is an Oil Lubricated, Three-Piece Pump (Replaceable Motor, Repairable Bearing Assembly and Pump Body Volute). Designed for Applications that Require More Flow than the Smaller 1/25 hp Pumps can Provide, with the Ability to Overcome More Friction Loss in Both Residential and Commercial Service. Maximum Operating Pressure is 125 psi and 225° F Bell & Gossett 106189 1/12 hp Pump Material: Cast Iron Amperage: 1.75 Application: Heating Voltage: 115V Max psi: 125 psi Type: Pump Horse Power: 1/12 Connection Size: 3/4" X 1" X 1-1/4" X 1-1/2" Flow Range: 0-33 GPM Head Range: 0-8 ft. Hertz: 60 Phase: 1 RPM: 1725 Temperature Range (F): 225° F Max Connection Type: Flanged