Hydraulic Concealed Squat Toilet Flushometers Quiet, Concealed, Diaphragm Type, Rough Brass Closet Flushometer for back inlet squat toilets for either left or right hand supply with the following features:Dual Filtered By-pass ADA Compliant Non-Hold-Open feature type Actuator (specify Actuator type) 1" I.P.S. Wheel Handle Bak-Chek Angle Stop Adjustable Tailpiece Vacuum Breaker Flush Connection for 1-1/2" Back Inlet Sweat Solder Adapter Diaphragm, Stop Seat and Vacuum Breaker molded from PERMEX rubber compound for Chloramine resistance