111 Variations Inch Size Uni One-touch Fittings Male connector KQ2H P.112 Male branch tee KQ2T Branch “Y” KQ2U P.113 Extended male elbow KQ2W P.112 P.113 P.113 Male run tee KQ2Y Male elbow KQ2L P.112 Basically, it is used together with male elbow. Different point is that it is used for fittings to avoid interfering with each other by making the piping multi-level. Use to pipe a female thread. Most general model. Use to pipe a female thread at right angles. Most general model. Use to branch a female thread at both 90° angles. Use to branch a female thread at a 90° angle. Use to branch a female thread.