Rain Bird 1804VAN 4" Professional Pop-Up Sprinkler, Adjustable (included one free 1/2" straight fitting). Type Pop-up spray head sprinkler. Sprinkler Inlet 1/2-in. Among superior performance features is a patented co-molded wiper seal that clears debris at pop-down and, together with a strong stainless steel internal spring, ensures positive stem retraction and a tight seal season after season.
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