This is a 1.0 gallon per minute (GPM) replacement brass nozzle tip with gasket and o-ring. This adapter is female and it is equipped with chemical resistant Fluoroelastomer seals and gaskets. It will fit on select Chapin industrial sprayers such as 22049XP, 22149PX, 22170XP, 22180XP, 1949, 19049, 19069, 1979, 1999, 19149, 19249, 1449, 1352.