PURPOSE:To obtain the effect of fine rectification by arranging guide plates to curved parts of the insides of water channels around a discharge port of curves of the curved parts. CONSTITUTION:A drainage metal fitting 1 is formed in the shape of an elbow bent to approximate 90 deg., and a horizontal channel R1 and a vertical channel R2 formed in the vertical direction by bending it approximate 90 deg. at the curved part 1a of the end of the channel R1 are formed in the inside of the drainage metal fitting. After that, a rectifiable metal fitting 2 is provided to the inside of the metal fitting 1, and steels 3 are mounted to a discharge port H through a water discharge port metal fitting 4. Then, hot and cold water run into the inside of the metal fitting 1 through the channel R1, the hot water runs into each of openings K1, K3 and K4 with approximately equal quantity, it is led to the inside of a cylindrical body 2a, and it runs into the channel R2 sinely along curves of guide plates 2c and 2d. According to the constitution, directional efficiency is given to running water by the guide plates, and the effect of fine rectification can be obtained.
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