Sloan G2 RESS-U-0.25 Urinal Flush Valve Retrofit Kit, Top Mounting Position Nominal Size-52" X 1.25" They are designed for single-use

They are designed for single-use cleanup

Star-sealed bottom helps prevent leakage

"name": "What if my wall cavity is less than 3-3/8 inches deep

Compatible with GOJO NXT SPACE SAVER 1000 mL refills

Easy to set up and operate

Sloan G2 RESS-U-0.25 Urinal Flush Valve Retrofit Kit, Top Mounting Position Nominal Size-52" X 1.25" They are designed for single-useFlush Valve Retrofit Kit, Fixture Type Urinal, Converts Manual to Automatic, Power Source (4)AA Batteries, Mounting Position Top, Gallons per Flush 0. 25, Pressure Range 15 to 100 psi, Battery Life 3 yr. @ 4000 Flushes Month, Sensor Range 15 to 30", Finish Plastic Chrome, Manufacturers Warranty Length 3 yr., Standards ADA Compliant, UL, CSA, UPC, For Use With Sloan Royal(R), Sloan(R) and Regal(R) Flushometers, Includes (4)AA Batteries and Installation