Apparatus for filtering water; apparatus for the filtering of organic matter; apparatus for water filtering; aquarium filters; domestic water filtering apparatus; domestic water filtering units; drinking water (filters for); drinking water filters; filter apparatus for water supply installations; filter boxes for water purification; filter diaphragms for household or industrial use; filters for aquaria; filters for aquariums; filters for ponds; filters for use in aquariums; filters for water purifiers; machines for water filtering (purifying); water filters (machines) for agricultural purposes