K Rain Dial-A-Nozzle Pop-Up Sprinkler 21031 (Discontinued by Manufacturer) Patented dial-a-nozzle provides a nozzle change for every half revolution of the nozzle selection Simple turn of the nozzle ring changes the sprinkler's GPM output and nozzle trajectory 2-In-1 feature, both adjustable and full, continuous circle heads in one rotor, at 360 degree setting, pattern changes automatically to full Arc setting automatically returns to original set pattern after nozzle turret has been intentionally or accidentally wrenched out of setting Replaces all major brands