Water filtering apparatus; Water filtering units for household use; 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 household use including refrigerator; Water ionizers; Water purification and filtration apparatus; Water purification machines; Water purification units; Water purifying apparatus; Water purifying apparatus and machines; Water purifying apparatus for household purposes; Water purifying units, for potable water for, namely, further removal of contaminates, raise the pH of the water and creating molecular hydrogen; Water treatment equipment, namely, water filtration units; Water treatment equipment, namely, water filtration units and reverse osmosis units; Water treatment equipment, namely, cartridge filtration units; Water treatment equipment, namely, reverse osmosis filtration units; Water treatment equipment, namely, reverse osmosis units; Apparatus for filtering drinking water; Electrolytic water generators for electrically decomposing tap water to generate electrolytic water and for removing chlorine odor from tap water; Filtering units for household consumption; Filters for drinking water; Oxygen generator for processing water by increasing oxygen content in the water