sprayers knapsack garden sprayers are designed with five speed flow controller. unique tank frame,popular among customers. sprayers1.OEM ... according to your spraying requiement.4. Our spare parts:Speed controller, Meter, single nozzle,double nozzle,three nozzle,plastic steel ... output hose and so on5. Spare Part: Five speed flow controller,stainless steel adjustable lance,brass single nozzle,double ...