11 WATER AND AIR FILTERS FOR DOMESTIC, COMMERCIAL AND INDUSTRIAL USE; AIR FILTERS FOR AIR CONDITIONING UNITS; FILTERS FOR COOLANT RECOVERY SYSTEMS; FILTERS FOR DRIPPER IRRIGATION SYSTEMS; WATER FILTERING UNITS FOR PRODUCING POTABLE WATER FOR DOMESTIC USE; COMPONENTS OF WATER FILTRATION UNITS FOR PRODUCING POTABLE WATER FOR DOMESTIC USE, NAMELY, ACTIVATED CARBON WATER FILTERS; FILTERS FOR AIR CONDITIONING UNITS; FILTERS FOR USE IN SWIMMING POOLS OR HOT TUBS; FILTERS FOR IRRIGATION SYSTEMS; FILTERS FOR LAWN SPRINKLER SYSTEMS; FILTERS FOR RECOVERY SYSTEMS; FILTER SYSTEMS PRIMARILY COMPRISED OF WATER FILTERING UNITS, AIR FILTERING UNITS, AND FILTERS FOR DRINKING WATER; FILTER MEDIA FOR GENERAL COMMERCIAL USE IN THE PURIFICATION OF AIR AND DRINKING WATER, AND FOR THE GENERAL INDUSTRIAL USE IN THE PURIFICATION OF AIR AND INDUSTRIAL FLUIDS; AIR AND WATER FILTER SYSTEM COMPONENTS FOR DOMESTIC, INDUSTRIAL, AND COMMERCIAL USE, NAMELY, FILTER HOUSINGS; FILTERS MADE OF FIBER FOR WATER FILTRATION, NAMELY, CARBON FIBER, CELLULOSE-BASED FIBER; WATER FILTERS FOR DOMESTIC, COMMERCIAL, AND INDUSTRIAL USE; FILTERS FOR WATER PURIFICATION APPARATUS