All Gallonage, Commercial Grade Pop Up Impact Sprinkler Head, 5 Assorted Interchangeable Color Coded Nozzles, Heavy Duty Plastic Case, Double Weighted Arm For Slower Rotation & Decreased Distance Of Throw, No Tools Required To Change Nozzle, Full Or Part Circle, Combination 1/2" Or 3/4" Bottom Inlet Serviceable Through Top Of Case.