Water purifying units, for potable water for domestic, commercial and industrial use; Water purification units; Water filtering apparatus; Water filtering units for domestic, commercial and industrial use; Water ionizers for household purposes; Water sterilizers; Water softening apparatus and installations; Drinking fountains; Water filters; Water treatment equipment, namely, water filtration units; Water purifying apparatus; Water purification apparatus; Water bottle filling stations; Water coolers; Whirlpool baths; Spas in the nature of heated pools; Taps being faucets; Air purifiers; Water purifying units, for potable water for commercial and domestic use; Filters for use with apparatus for water supply; Electrostatic water treatment apparatus; Magnetic water treatment apparatus; Membrane filtration units for water treatment apparatus; Ionization apparatus for the treatment of water