Filtering units for drinking water; Filters for drinking water; Flow restrictors for reverse osmosis water purification units; Oxygen generator for processing water by increasing oxygen content in the water; Ozone sanitizers for air and water; Tap-water purifying apparatus; Water coolers; Water desalination plants; Water distillation units; Water distilling units; Water faucet spout; Water filtering apparatus; Water filtering devices, namely, water purification installations for waste water and sewage consisting of curtains and textile fabrics; Water filtering units for commercial and residential use; Water filters; Water filtration and purification units and replacement cartridges and filters therefor; Water filtration apparatus for the deionization of water; Water filtration pitchers sold empty; Water ionizers; Water purification installations; Water purification machines; Water purification tanks; Water purification units; Water purification, sedimentation and filtration apparatus for clarification, thickening and filtration of water, waste water and industrial water; Water purifiers; Water purifying apparatus; Water purifying units, for potable water for commercial and residential; Water sterilizers; Water treatment apparatus, namely, clarification and thickening machines for use in treatment of liquids in the nature of water, waste water and industrial water; Water treatment equipment, namely, cartridge filtration units; Water treatment equipment, namely, chemical sterilization units; Water treatment equipment, namely, reverse osmosis filtration units; Water treatment equipment, namely, reverse osmosis units; Water treatment equipment, namely, ultraviolet sterilization units; Water treatment equipment, namely, water filtration units; Water treatment equipment, namely, water filtration units and reverse osmosis units