Filters for industrial and household use for filtering liquids; filters for industrial installations for filtering liquids; liquid filter units, namely, filter cartridges for water purification apparatus; filters for water filtering apparatus; water purification filters; water treatment filters; water filters for industrial purposes; industrial installations for filtering liquids; water filtering apparatus; water filtering installations; water filtering units; filters (not being parts of machines) as components of filtration systems or as independent filters for the sterilization and purification of liquids and gases for the electronic, pharmaceutical, food, luxury consumer goods and cosmetics industries in general.