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 3/8 in, Flange or Union Included No, For Use With Potable Systems Yes, Horsepower 1/15, Maximum Feet of Head 18 ft, Maximum Flow Rate @ 10 Feet of Head 12 gpm, Maximum Flow Rate @ 15 Feet of Head 5 gpm, Maximum Flow Rate @ 1 Foot of Head 24 gpm, Nameplate Voltage 115V AC, Number of Speeds 3, Phase Single, Pump Type Multi-Speed, Series Family NRF