Electrolytic water generators for electrically decomposing tap water to generate electrolytic water and for removing chlorine odor from tap water; Filtering units for water filtering; Filtering units for producing potable water for domestic use; Filters for drinking water; Tankless water heaters; Wall water fountains; Water filtering apparatus; Water filtering units for domestic use; Water filtration and purification units and replacement cartridges and filters therefor; Water purification in...