NDS 4" Pop Up Center Drive Polyolefin Pop Up Drainage Emitter with UV Inhibitor. It fits 3" & 4" hub sewer & drain fittings. The pop-up does not rise high enough to interfere with mowers and its green color blends into the surrounding landscape. It keeps out debris & rodents during dry weather. The emitter opens by the hydrostatic pressure of water flowing through the drain pipe and closes again as flow diminishes. Includes pop-up drainage emitter with either 3 inch or 4 inch PVC S & D elbow.
WARNING: This product can expose you to chemicals, including Vinyl Chloride which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov