2 in. Lead Free Reduced Pressure Principle Assembly with Strainer and Air Gap Flooring Supplies ) 16 Cut Out Depth (in ) 16 Cut Out Depth (in 4 Returnable 180 Day Maximum Speed (rpm) 32000 Cordless Corded Cordless Battery Power Type Lithium Ion Batteries Included No Battery Charger Tool Only Charger Included Charger Not Included Tools Product Type Power Tool Voltage (volts) 12 Amperage (amps) 0 Condition New Battery Charger2 Tool Only Number of Batteries Included 0 Number of Batteries Included2 0 Cordless Tool Type Rotary Tool Chuck Type Keyless Motor Type Brushed Product Width (in Entire unit is serviceable in line The valve is designed for installation on potable water lines to protect against both back siphonage and backpressure of contaminated water into the potable water supply