shaft 35 with a screwdriver inlet port 34 of the nozzle may be opened or closed nozzle cap 20 is located on the top section of the stack upper valve disc 21 is the next section below nozzle cap 20 central plate 24 is immediately below upper valve disc 21 lower valve disc 23 is next below central plate 24 lower plate 24 is the bottom section of the stack each of valve discs 21 and 23 may be rotated around central threaded shaft 35 to open or close irrigation water to produce sprays 30 and 31 there are two separate internal passageways to carry water from inlet port 34 to discharge ports 32 and 33 passageway 44 conducts water from inlet port 34 to upper discharge port 32 passageway 45 conducts water from inlet port 34 to lower discharge port 33 each valve disc has a semicircular slotted cut out portion 38 in disc 21 and 39 in disc 23 which is aligned with interior passageways 44 and 45 respectively disc 21 may be rotated by pushing against finger tab 42 disc 23 may be rotated by pushing against finger tab 43 tabs 42 and 43 may be manipulated separately to open or close discharge ports 32 and 33 respectively valve discs 21 and 23 each have a semicircular tongue on the lower surface thereof to fit.