This is a 0.5 gallon per minute (GPM) replacement brass nozzle tip with gasket, female adapter and o-ring. 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.