the GARDENA L-piece 25 mm x 34? external thread is used, within the framework of the GARDENA Sprinkler System ? for connecting the Turbine Pop-up Irrigation T 380, the Pop-up Square Irrigation OS 140, at the end of the pipe, due to the patented ?Quick & Easy? quick connection technology, the pipe assembly or disassembly is done without tools by simply turning the screw connection by 140°, for watertight, safe operation, the threaded connection of the L-piece is self-sealing