filters for use with apparatus for water supply; shower fittings; water filtering units; water purification filters; filters for water distribution apparatus; water filters; apparatus for filtering water; water filtering apparatus for domestic use; water treatment filters; water-saving shower heads; shower head sprayers; shower sprayers [plumbing fittings]; electric water purification filters for household purposes; filters for sanitary water distribution apparatus; water filtering apparatus; spray heads for showers; devices and systems for water purification comprised of water filters; water purification filters, electric; showers; shower heads; devices and systems for purifying water comprised of water filters; filters for water purifiers; water-saving showerheads; filters for water filtering apparatus