Model 7324 wall mounted eye/face wash shall include an AXION® MSR eye/face wash head shall feature inverted directional laminar flow which achieves Zero Vertical Velocityâ„¢ supplied by an integral 3.7 gpm flow control. Unit shall also include a chrome-plated brass stay-open ball valve equipped with stainless steel ball and stem, green molded ABS plastic wall bracket, universal sign, and 1/2" NPT inlet. Note: Floor drain is recommended for this unit.