Rain Bird 1800 Series 4 in. H Adjustable Pop-Up Sprinkler (Pack of 36)Enhance your water and irrigation procedures with Rain Bird pop up sprinkler heads. With an ability to withstand extreme climatic conditions, this pop up sprinkler conveys unmatched reliability. The 1800 series, rightly called Rain Bird 1800, ensures an adjustable and unique spray pattern and a positive stem retraction. These Rain Bird sprinkler heads are inevitable for your gardens and lawns. Give the maintenance to your garden by purchasing Rain