Bell & Gossett NRF 36 - 1/6th HP, 36 GPM Price For: Each Max. Operating Pressure: 150 psi Shaft Material: No Mechanical Seal Item: Hot Water Circulator Pump Connection Style: Flanged Pump Mount: Noryl(R) Phase: 1 Drive Type: Direct Pump Type: Wet Rotor, Maintenance Free Flange/Union Included: No Max. Temp.: 225 Degrees F Impeller Material: Ceramic Voltage: 115 Manufacturers Warranty Length: 1 yr. Housing Material: Cast iron Mechanical Seal: Maintenance Free Series: NRF HP: 1/6 Amps: 2.3 RPM: 3200 Thermal Protection: Auto Min. GPM @ Head: 13 gpm @ 25 ft. Width: 5-3/4" Max. GPM @ Head: 35.75 gpm @ 1 ft. Best Efficiency GPM @ Head: 20 gpm @ 18.5 ft. Number of Speeds: 3 Face to Face Dimension: 6-3/8" Inlet/Outlet Size: 1-1/2" Length: 6-7/8" Shut-Off: 32.5 ft. Loop Configuration: Closed Country of Origin (subject to change): China