Hydronic Circulating Pump, Compatible Intake Pipe Size 3/4 in, 1 in, 1 1/4 in, 1 1/2 in, Connection Type Flange, Face to Face Dimension 6 1/2 in, Flange or Union Included Yes, For Use With Potable Systems No, Horsepower 1/6, Maximum Feet of Head 29 ft, Maximum Flow Rate @ 10 Feet of Head 23 gpm, Maximum Flow Rate @ 15 Feet of Head 18 gpm, Maximum Flow Rate @ 1 Foot of Head 33 gpm, Nameplate Voltage 115V AC, Number of Speeds 3, Phase Single, Pump Type Multi-Speed