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 No, Horsepower 1/25, Maximum Feet of Head 18 ft, Maximum Flow Rate @ 10 Feet of Head 8 gpm, Maximum Flow Rate @ 15 Feet of Head 5 gpm, Maximum Flow Rate @ 1 Foot of Head 15 gpm, Nameplate Voltage 115V AC, Number of Speeds Variable, Phase Single, Pump Type Energy Efficient, Series Family 00