Air filters for industrial installations; Apparatus for filtering drinking water; Fibrous filtering media for general industrial use in the purification of air and industrial fluids; Filters made of fiber for water filtration; Filters and filtering devices for air and gas conditioning; Filters for air conditioning; Filters for drinking water; Filters for fluids, namely, for water and area-water solutions; Filters, heaters and pumps sold in combination for use in hot tubs; Filters, heaters and...