Apparatus for descaling water; Apparatus for filtering water; Apparatus for purifying water; Apparatus for the decontamination of water; Apparatus for the separation of liquids for water supply purposes; Apparatus for the separation of liquids being water filtering apparatus; Apparatus for the supply of water for slaking lime; Apparatus for waste water purification; Apparatus for water filtering; Apparatus for water purification; Apparatus for water softening; Apparatus for water supply purposes; Appliances for water filtration (other than machines); Chemical installations for conditioning drinking water; Devices for the separation of impurities from water (purification); Devices to treat water to prevent deposits in cooking apparatus; Devices to treat water to prevent deposits in sanitary installations; Disinfectant apparatus for dispensing solutions into water-pipes for sanitary installations; Domestic water filtering apparatus; Domestic water filtering units; Drinking water filters; Drinking water supply installations; Filtering installations for water; Filters for drinking water; Filters for the treatment of water; Filters for use with apparatus for water supply; Filters for water purification; Filters for water purifiers; Industrial waste water purification plants; Installations for conditioning water; Installations for purifying water; Installations for the abatement of water pollution; Installations for the control of water pollution; Installations for the purification of waste water; Installations for the recycling (purification) of waste water; Installations for the treatment of drinking water; Installations for the treatment of industrial waste water; Installations for waste water engineering; Installations for water filtration; Installations for water filtering; Installations for water purification; Installations for water purifying; Installations for water softening; Installations for water supply; Installations for water treatment under osmotic process; Ion generating water purification apparatus (ionisers); Ionic water generators; Ionisation apparatus for the treatment of air or water; Ionisers for water treatment; Ionization apparatus for the treatment of air or water; Machines for processing (purifying) water; Machines for purifying water; Machines for the treatment (purification) of water; Machines for use in the processing (purification) of water; Machines for water softening; Machines for water filtering (purifying); Membrane filtration units for water treatment apparatus; Membrane purifying apparatus for the purification of water; Membranes for the filtration of water; Reverse osmosis devices for use in water conditioning apparatus; Reverse osmosis elements for industrial use in reducing the salt content of water; Reverse osmosis elements for domestic use in reducing the salt content of water; Reverse osmosis elements for reducing the brackishness of water for domestic use; Reverse osmosis elements for reducing the brackishness of water for industrial use; Reverse osmosis elements for reducing the brackishness of water; Waste water treatment apparatus; Waste water treatment installations; Water desalinating apparatus; Water desalinating apparatus utilising reverse osmosis; Water filtering apparatus for industrial use; Water filtering apparatus; Water filtering apparatus for domestic use; Water filtering units; Water filtering installations; Water filters (installations) for agricultural purposes; Water filters (machines) for agricultural purposes; Water filters for industrial purposes; Water filtration apparatus; Water filtration installations; Water filtration units; Water purification apparatus; Water purification filters; Water purification installations; Water purification machines; Water purifying apparatus and machines; Water purifying installations; Water purifying machines; Water softeners (apparatus); Water softening apparatus; Water softening apparatus and installations; Water softening installations; Water softening machines; Water treatment apparatus; Water treatment apparatus for water purification; Water treatment apparatus for water softening; Water treatment filters; Water treatment units