Permits convenient conversion to drip tubing when used with compression adapter. Provides 30 psi (2,0 Bars) pressure regulation and 200-mesh (75 micron) screen that is easily accessible. Internal assembly drops into any 1804, 1806, or 1812 spray head body to easily retrofit existing system to Xerigation products. Can be installed above or below grade. If retrofit flow is less than 3 GPM, replace electronic valve with Rain Bird Control Zone Kit.