A combination faucet assembly and filter assembly is provided wherein these respective assemblies are interconnected in a side-by-side relationship by pipes preferably located in a common housing structure. The combination is adapted for use in association with a kitchen sink or the like. The faucet assembly incorporates a valve for mixing hot and cold tap water and for diverting cold tap water for passage through a filter in the filter assembly. A spout is preferably associated with the faucet assembly. A pivotable faucet lever is preferably associated with the faucet assembly. The lever has a universal type of movement capability and is manipulated by an operator to accomplish regulating of either such mixing of such divertiing, and also the regulating of water volume issuing from the spout. Preferably, in mixing hot and cold in an operator selected ratio are fed to a mixing chamber adjacent the valve before dispensing of the resulting water mixture from a spout. Preferably, in diverting, the faucet lever is moved downward below the normal off position whereby cold water is diverted from the faucet assembly, passes through the filter, returns to the faucet assembly and exits through the spout. Preferably, the filter is in a cartridge form that is insertable into and removable from the filter assembly through the top thereof. Preferably the spout has one channel for mixed water and another channel for filtered water.