The TeeJet Boom Nozzle with 1/2" Hose Barb & Bottom Check Valve - SS-19350-212-540 provides a dependable connection for compatible boom spraying systems. Designed with a 1/2-inch hose barb for easy connection and a bottom check valve to help control flow, it’s a practical choice for keeping your spray system working efficiently.Whether you’re replacing a worn component or keeping a spare on hand, the SS-19350-212-540 is well suited for spray equipment used in lawn care, pest control, turf and golf course maintenance, agriculture, and other professional spraying applications.