Apparatus for filtering drinking water; Filters for drinking water; Plumbing fittings, namely, faucet filters; Plumbing fittings, namely, sink strainers; Strainers for water lines; Swimming pool water cleaning and filtering units; Tap-water purifying apparatus; Washing machine water treatment device connected to the cold water inlet to eliminate need for detergent; Water filtering units for aquariums; Water filters; Water filtration and purification units and replacement cartridges and filter...