a diversion device between a faucet and a shower head comprises a hollow assembling seat jointed by a pair of water pipes : one for cold water and the other for hot water , and is used to shut off the source water as well divert it either to a shower head or to a spout while no longer has to resist the pressure of the water therefor being light and handy in operation . the diversion device includes a perforated tube with an internal valve member having flow blocking shields mounted on the valve member .