NDS 422G Pop-Up Drainage Emitter With 90 Degree Elbow, 4""NDS" POP UP DRAINAGE EMITTER WITH 90 DEGREE ELBOW 4" 90 degree PVC elbow Pop up emitter Allows water to be diverted to water safe areas away from structures, erosion prone landscapes and poor drainage areas Opened by water pressure flowing through the drain pipe Emitter closes when the flow diminishes Does not rise high enough to interfere with mowers WARNING: This product can expose you to chemicals including Vinyl chloride, which is known to the