Rain Bird 1804Q Professional Pop-Up Sprinkler, 90&deg; Quarter Circle Pattern, 8' - 15' Spray Distance, 4" Pop-up Height #1 commercial-grade irrigation spray head brand in the world 4" pop-up height with 90 quarter circle pattern Adjustable spray distance from 8' to 15' Heavy-duty stainless steel spring assures flush retraction every time Patented pressure-activated co-molded wiper seal prevents wasteful water leakage and assures long life Tapered pop-up neck helps remove debris during retraction