Hunter Sprinkler SJ706 Swing Sprinkler Joint, 3/4-Inch Threaded by 6-Inch Length Are you having difficulty raising sprinklers that are buried under Inch of built-up thatch? Do you want to be sure that when a sprinkler has heavy equipment rolling over the top it can be easily readjusted to the correct grade? It's the way to easily install sprinklers to their proper height and position in mere seconds