Circulating Pump Motor Compatible with Brand Bell and Gossett Compatible with Grainger Part Number 4RD16 4RD17 Compatible Manufacturer Model Number 106189 Series 100 BNFI Compatible with Pump Type In-Line Circulating Pumps Compatible with Series W06189 W06197(OBS) W06197LF Compatible with Series Family 100 Horsepower 1/12 Maximum Ambient Temperature 104 Degrees F Maximum RPM 1 725 RPM Minimum Ambient Temperature 32 Degrees F Motor Enclosure Design Open Drip-Proof