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Additives (Chemical -) for use in the disinfection of water; Additives (Chemical -) for use in the cleaning of water; Water-softening preparations; Filtering media [chemical] for water; Water treatment preparations; Inorganic precipitation agents for the purification of potable water; Inorganic precipitation agents for the purification of waste water; Chemical compositions for water treatment; Chemical compounds for the removal of solids in water clarification; Enzymes for use in water treatment; Phosphates for potable water treatment; Chemical preparations for use in water softening; Chemical preparations for use in water purification; Biological water treatment preparations; Water purifying chemicals for swimming pools; Chemical preparations for neutralizing water; Preparations containing bacteria for water treatment; Deicers; Disincrustants; Hydraulic fluids for general use; Fluids for hydraulic circuits; Filtering compositions; Filtering materials [chemical preparations]; Chemicals for use in industry and science
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Water purifying apparatus and machines; Sewage purification apparatus; Electric bath-water purifying apparatus for household purposes; Industrial-water purifying apparatus; Filters for water purifiers; Water purification installations; Water purification tanks; Water purification units; Water softening apparatus and installations; Water softening installations; Apparatus for filtering drinking water; Water filtering apparatus; Water filters; Electric water purification filters for household purposes; Strainers for water lines; Water treatment filters; Water filtering installations; Membranes for the filtration of water; Water filtering units; Heating apparatus and installations; Lighting apparatus and installations; Apparatus for vapour producing installations; Cooking apparatus and installations; Refrigerating appliances and installations; Drying apparatus and installations; Ventilation [air-conditioning] installations and apparatus; Appliances for water distribution [automatic]