The Omnipure K2356-JJ KDF-55 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. The filter is a 6 inches polypropylene filter that comprehensively removes the taste and odor of chlorine, algae, bacteria, and scale deposit. The filter has an impressive rating of 1 micron. The flow rate is 0.5 gpm. The dimensions are 2 inches x 6 inches. The cartridge has 1/4 inch FQC fittings for easy installation. It is one of the best water filtration cartridges for icemakers, RO systems, beverage systems, and refrigerators. It has a 1 year or 1000 gallons capacity.