Grundfos Pump - UP26-99 (Single Speed)

The Grundfos UP26-99 Single-Speed Circulator Pump is a maintenance-free, wet-rotor circulator engineered for dependable performance in geothermal flow centers, ground-source heat pumps, water-source heat pumps, and hydronic circulation systems. Featuring a durable cast iron volute, energy-efficient 1/6 HP motor, and quiet operation, the UP26-99 delivers reliable flow and long service life in demanding residential and light commercial applications. The pump includes standard two-bolt flange connections with O-rings for easy installation and is designed for continuous-duty operation.

• Genuine Grundfos circulator pump
• Single-speed wet-rotor design
• 1/6 HP motor
• Single-phase 208–230V operation
• Cast iron volute housing
• Standard two-bolt flange connections
• Maintenance-free design
• Quiet, energy-efficient operation
• Ideal for geothermal flow centers, ground-source heat pumps, and hydronic circulation systems
• Rated flow: 17.6 GPM
• Maximum head: 32 ft
• Includes flange O-rings