Pump, Laing Circ, Series E5, 115v/230v, 3/4"b, w/4ft Cord, OEM 10-0102-K Non-OEM replacement for all models of Watkins Silentflo circulation pumps used in Hot Spring, Tiger River & Limelight spas from 1986 to 2012. The Laing Series E5 circulation pump is compact and lightweight, less than 5 lbs. It is whisper quiet and highly efficient using only 50 Watts of power. The Laing Series E5 is specifically designed for water circulation and is rated for temperatures up to 140° F and line pressure up to 50 PSI. It is equipped with a high density ceramic bearing ball and a carbon graphite bearing cap that allows for continuous operation. Embedded microprocessor control gives protection against dry run conditions. Made with 3/4barb inlet/outlet and equipped with a 4ft power cord. This pump can be used to replace the discontinued Laing SM-303 (E3). Product Specifications: Accessory Pump Type: Circulation Manufacturer: Laing Thermotech Pump Model: E5 Speed: 1 Speed (1-Spd) Motor Voltage: 115v/230v Drain Plug Location: None Suction Style: Center Suction Connection Type: Smooth Barb (sb) Suction Pipe Size: 3/4 Discharge Style: Side Discharge Connection Type: Smooth Barb (sb) Discharge Pipe Size: 3/4 Motor Amperage/Wattage: 50w