Make your underground sprinkler system also function as a low-flow drip irrigation system with this adapter. The Multi-Inlet X 1/2 in. Tubing, Swivel Tee Sprinkler Riser to Drip Tubing Adapter threads onto the sprinkler riser & outlets through the sprinkler head on top as well as through two 1/2 in. supply tubing or dripline inserted into the side compression rings. A filter washer inside the adapter ensures a watertight fit and screens out particles before they can clog the system. This adapter is made of acrylonitrile butadiene styrene (ABS) treated with UV inhibitors to prevent cracking.