Water filtration assembly and method for assembly

A water filtration assembly for an appliance, comprising:

• a housing comprising an inner surface adjacent to a housing internal volume, a fluid inlet opening, a fluid outlet opening, and a distal end;
• a filtration media block positioned at the housing internal volume, wherein a first flow passage extends in fluid communication from the fluid inlet opening, the first flow passage at least partially formed between the inner surface of the housing and an outer surface of the filtration media block, the filtration media block comprising a media block internal volume extending from a media block distal end opening, the filtration media block comprising a porous structure permitting fluid flow from the first flow passage to the media block internal volume;
• a media block end cap positioned at the media block distal end opening to receive the filtration media block, wherein the media block end cap and the housing together comprise an anti-rotation interface configured to inhibit rotation of the media block end cap relative to the housing;
• a housing end cap receivable at the distal end of the housing, wherein a plenum is formed between the housing end cap and the media block end cap;
• a first mating interface at which the housing end cap couples to the housing;
• and
• an electrically-driven module positioned in operable arrangement with fluid received at the media block internal volume.