Patent ID: 8017008

Claim:
A filter assembly for water purifiers, said filter assembly comprising: a head being comprised of an inlet duct for guiding inflow water, a control valve for controlling a flow of water fed into said inlet duct, and an outlet duct for discharging purified water to an outside; a circular cap being provided on a lower portion of said head and having cylindrical space therein; a filter cap fitted into the cylindrical space and having an inlet hole into which water flows, and a discharge hole for discharging water; a filter cartridge having a filtering part and a filter to purify water; a plurality of first fastening holes formed in an outer circumference of said circular cap, each hole having a step; a plurality of second fastening holes formed in an outer circumference of an upper portion of the filter cap; a locking part disposed in each of the first fastening holes and fitting into each of the second fastening holes, locking the filter cartridge; and an elastic member provided to surround the circular cap and the locking part, elastically supporting the locking part to the corresponding first fastening hole.