Apparatus and installations for lighting, heating, cooling, steam generating, cooking, drying, ventilating, water supply and sanitary purposes; Water purification, desalination and conditioning installations; Sterilization, disinfection and decontamination equipment; Sanitary and bathroom installations and plumbing fixtures; Water treatment units for aerating and circulating water; Watering installations, automatic; Ballast water treatment systems; Chilled purified water dispensers; Filters for use with apparatus for sanitary purposes; Water sanitizers for swimming pools and spas.;