The WRP-2 eliminates time consuming adjustments, with a control range from cold to 105 degrees Fahrenheit. The WRP-2 helps control hot / cold mix and regulates output temperature to a +/- .5 degrees Fahrenheit, and features an accurate dial thermometer and thermostatic motor. The WRP-2 also features a pressure equalizing chamber which maintains equal pressure to the thermostatic section regardless of pressure changes. The WRP-2 comes complete with a thermostatic valve, plumbing fittings, flow control and shut-off valves, check stops with strainers, indicator thermometer with recalibration screw settings and a vacuum breaker. Feature efficient 1/2" outlets and removable inlet filter screen. Flow rate: 2 - 7 GPM. Requires plumbing connections.