The Laing E10 EcoCirc Circulation Pump is commonly used in many hot tub brands and is compatible with most other circulation pumps. It is highly efficient, consuming 40% less power than many comparable models. The E10 is also lightweight, whisper-quiet, and compact, making it an excellent choice for hot tub circulation. 230 Volts 1" Hose Barb Fittings for Pump Intake and Discharge 65 Watts Includes 4-foot power cord and Mounting Bracket. Domestic or international 50 or 60Hz same high flow Compact Design Lightweight, less than 5 lbs Open Impeller - Resistant to Clogging Dry Run Protection Specifications: Max Capacities: 14 GPM Max Head: 20' Maximum Working Pressure: 29 PSI Maximum Temperature: 140 Degrees Fahrenheit Rotation: counterclockwise when viewed from the motor end. Electronically Commutated AC/DC/AC Spherical Motor. Automatic overload protection. Alternative Part Numbers: Laing E10-NSHNNN2W-20, Laing 74079, Laing 6050U0010.