The Rain Bird 1800 Series Professional Pop-Up Sprinkler is the #1 commercial-grade irrigation spray brand in the world. This sprinkler's Matched Precipitation Rate allows it to be used in any combination with other Rain Bird fixed and adjustable pattern sprays. A tapered pop-up neck helps to assure retraction in all soil types. The pre-installed High Efficiency Adjustable Pattern Spray Nozzle is easily adjusted to the exact pattern required to ensure your landscape is precisely watered with minimal overspray. Ideal for odd shaped corners and smaller grassy areas around sidewalks and driveways as well as flower beds or shrubs. The textured adjustment collar rotates to easily adjust spray pattern from 0 degree to 360 degree. Textured base and collar are easy to grip even when wet. Non-corrosive plastic and stainless steel construction provides a long life.