Attach 1/2 in. distribution tubing or dripline to a mainline pipe with the 1/2 in. X 1/2 in. X 3/4 in. FPT Compression Swivel Tee. The compression fitting has two 1/2 in. compression outlets and one 3/4 in. female pipe thread swivel inlet. Screw swivel hose thread onto a standard 3/4 in. MPT connection point; fit 1/2 in. supply tubing or dripline into the compression rings, where an internal barb compresses the tubing for a watertight fit. Filter washer inside screens out particles. The compression swivel adapter is made of acrylonitrile butadiene styrene (ABS) treated with UV inhibitors to prevent cracking.