Rain Bird Rainbird 3500 Series Part/Reverse Full Circle Rotor with Seal-a-matic, 4

4 in partfullcircle popup rotor sprinkler with SealAMatic SAM check valve SealAMatic SAM check valve holds up to 7 feet 21m of elevation change to prevent puddling and erosion caused by low head drainage Topadjust arc adjustment requiring only a flatblade screwdriver 40 360 Degree Arc PartCircle arc rotation and reversing FullCircle rotation in one Radius adjustment screw allows up to 35 radius reduction without changing nozzles