UP15-18B7 Grundfos 1/25 HP Recirculator Pump (59896121)The Grundfos UP15-18B7 1/25 HP Recirculator Pump with bronze pump housing. The Grundfos circulator pumps, Series UP, are specifically designed for heating systems. The pumps are also suitable for circulation of hot domestic water and for circulation of liquid in cooling and air-conditioning systems.SPECIFICATIONS:Flow range: 0 - 15 U.S. GPMHead range: 0 - 14 FEETMotors: 2 Pole, Single Phase, 115 VoltMaximum fluid temperature: 230°F (110°C)Minimum fluid temperature: 36°F (2°C)Maximum working pressure: 145 PSIConnection: Sweat - 3/4"