Single-position body (head) of a sprayer is applied on rod sprayers and is installed on collectors of diameter: Ø20; Ø22; Ø25; Ø32; Ø40mm One body is fitted with a sprayer and fixed using a "bayonet" type nut. Also, the body contains a cut-off device that serves to securely cut off the flow of the working fluid, which provides significant savings of the pesticide.