Product main features for head shower set 26 475 / 26 477 / 26 479 / 26 481 2 inlets, 1/2" installation depth 75-105 mm connection unit in DR brass stable build-in box and protective cover leakproof housing gasket integrated flushing plug GROHE Water Saving 9.5 l/min flow limiter per each water way without set for final installation