Air filters for air conditioning units; Commercial refrigerators and freezers and replacement parts and fittings therefor; Domestic water filtering apparatus; Drinking water filters; Filters and filtering devices for air and gas conditioning; Filters for air conditioning; Filters for air purifiers; Filters for aquaria; Filters for drinking water; Filters for fluids, namely, for water and area-water solutions; Filters for ice making apparatus; Filters for swimming pools; Household tap-water filters; Purification installations for sewage; Water filtering units; Water filtering units for domestic, commercial, or industrial use; Water filters; Water filtration and purification units and replacement cartridges and filters therefor for refrigerators, ice makers; Water purification filters; Water purifying apparatus for household purposes