The Gardena T-piece 25 mm x 3/4" internal thread is used in the Gardena sprinkler system for the installation of the drainage valve along the pipe. Thanks to the patented "Quick & Easy" connection technology, pipe assembly or disassembly can be done tool-free by simply turning the connection 140°. For a watertight and secure operation, the threaded connection of the T-piece is self-sealing.