Circulating Pump Motor, Compatible with Brand Bell and Gossett, Compatible with Grainger Part Number 4RD13, Compatible Manufacturer Model Number 105089, Compatible with Pump Type In-Line Circulating Pumps, Compatible with Series W05089, W05092LF, Compatible with Series Family 60 11/2 In.AA, 60 11/4 In.AA, 60 1AA, 60 2A Obs. 60-3S, 60 2AA, 60-13S, 60-15S, 60-B13S, Obs. 60-5S, PD-35S, Horsepower 1/2, Maximum Ambient Temperature 104 Degrees F, Maximum RPM 1,725 RPM