The Omnipure CL6ROT33-B 2" x 6" Acid Wash GAC is an inline type of cartridge. An inline cartridge can be installed inline, even behind a refrigerator, for ensuring cleaner, better tasting water. The advantage of inline filters is that they can be easily installed wherever filtered water is required. Granular Activated Carbon is designed specifically for the reduction of any unpleasant taste, dissolved organic materials, or odors. The media removes impurities and chemicals from municipal water too. The filter is a 6 inches polypropylene filter that comprehensively removes sediment, dirt, silt, and sand, ensuring you get purified, sediment-free drinking water. The filter has an impressive rating of 5 microns. The flow rate is 0.5 gpm. The dimensions are 2 inches x 6 inches. The cartridge has 1/4 inch female threaded fittings for easy installation. It is one of the best water filtration cartridges for icemakers, RO systems, beverage systems, and refrigerators.