Valve bodies, timers, actuators, pressure reducing valves, globe valves, spray heads, rotors and other key irrigations components are available from Champion Irrigation products. Champion Irrigation makes products that last and withstand time. Adjustable Pop Up Impulse Underground Sprinkler Head. High impact Abs plastic construction. Positive retraction. Adjustable arc. Coverage full or partial circle. 1/2" and 3/4" inlet adaptor. 2.2 to 4.0 GPM nozzles. 29" to 45" spacing.