This is 910-157/P replacement blower fan kit for Regency, Osburn, Nordica, Valley Comfort, Pacific Energy Fireplaces. Packed in the box are ball bearing blower, rubber mounting feet, magnetically mounted thermostat, rheostat variable speed control, 3-prong power cord, wire harness, installation wiring diagram. Regency Classic C33, C34, F2400, H2100, I3100, I1200, I2400. Regency F Series F1000, F1100, F3100, 3100. Regency Hampton H200, H27, HI200, HI300, HI400. Regency Ultimate P42, U43, U45. Regency Waterford E61, T25. C33, C33-1, C33-2, C33-3, C34, C34-1, C34-2, C34-3, C-34-10, GR47, GR48, GR54, GR55, GR57, GR58, GR77, GR78, HZ40E, HZ40E-1, HZ40E-2, HZ40E-10, HZ54E, HZ54E-1, HZ54EPV, P42, P42-1, P42-2, P42-3, P42-4, U23, U24, U41, U41-1, U41-2, U41-3, U41 -FS, U41-IN, U42, U43, U44, U43-1, U43-2, U43- 3, U41-DV, U45, U45-1. Specifications of The Replacement Regency 910-157 Blower Kit? – Length x Width x Height: 14 1/2″ x 4 3/4″ x 4 1/16″, Air discharge length: 1″ x 4 3/4″ (each side), Distance between flanges: 3.25″, Motor Bearing Type: Ball, Motor RPM: 2600, Airflow in C. M: 80/135, Volts: 115, Frequency: 60 Hz, Power Consumption: 144 watts, Amperage: 1.25. M: 80/135, Volts: 115, Frequency: 60 Hz, Power Consumption: 144 watts, Amperage: 1.25, Blade Material: Composite, Frame Material: Aluminum. Magnetic Thermostat: Yes, Rheostat Variable Speed: Yes, Power Cord Type: 3-prong? 100% Ball Bearing Blower? – The bearing type of this osburn blower fan replacement is 100% sealed ball bearing blowers, which is last longer and outperform cheaper sleeve bearing blowers. Sealed ball bearings require no additional maintenance, are less prone to the effects of heat, and will operate more quietly over their full lifetime. Reduces Noise? – This 910-157/P replacement blower comes with rubber mounting feet which to reduce noise and vibration. Adjustable Fan Speeds, Turns On/Off Automatically? – The blower speed is manually controlled by rotating the speed control knob until the desired speed is achieved. When turned on the first setting will be LOW. HIGH setting may be obtained by obtained by rotating the speed control knob clockwise. The thermal switch can automatically control the on/off function of your fireplace blower fan. Temperature switch closes at approximately 120°F and opens at approximately 90°F (+/- 5°F tolerance).