Filtering units for water filtering, producing potable water for domestic use; Hand held shower heads; Hand showers; Handheld showers; Plumbing fittings, namely, faucet filters; Plumbing fittings, namely, shower control valves; Shower faucet extensions; Shower head sprayers; Shower heads; Shower mixing valves; Showerheads and components thereof; Showers; Taps being faucets; Thermostatic mixing valves; Tub spouts; Washers for water faucets; Washers for water taps; Water control valves for faucets; Water faucet spout; Water filters; Water filtration and purification units and replacement cartridges and filters therefor; Water filtration and purification units and replacement cartridges and filters therefor for refrigerators, ice makers