Valve Inlet and Handle Positions Sloan Flushometers for most exposed applications are supplied the handle in line (180) with the water supply inlet. This allows for the water supply to be roughed-in either to the right or left of the valve. Concealed Flushometers are provided with a double handle opening to allow for the water supply to be roughed-in either to the right or left of the valve. The push-button assembly is perpendicular (90 degrees) from the water supply opening.