Rainbird Falcon 6504 High Speed Stainless Steel Full Circle Rotor without Nozzle Full-circle, stainless steel, high speed rotor pop-up sprinkler, Nozzle not included Stainless steel riser option helps deter vandalism on public turf areas, Water-lubricated gear drive for reliable, durable rotation Heavy-duty, stainless steel retract spring ensures positive pop-down, Standard black rubber cover or optional purple rubber cover for non-potable water Removable Seal-A-Matic (SAM) check device prevents puddling and erosion caused by low-head drainage High speed model completes full rotation in approximately one minute for quick wet-down of clay tennis courts and sports turf infield areas