The OMNIPURE K-Series K2533-JJ filters features 1/4 in. quick-Connect compression fittings that allow for installation and replacement in a matter of seconds without the use of tools. The OMNIPURE K-Series Quick-Connect fittings are molded directly into the filter body and cap as a single unit, reducing the chance for weeping or seepage. Cap and body are spin-welded together producing a smooth, consistent seal without the use of glues or binders that can cause contamination. The OMNIPURE K2533-JJ water filter can be used as an RO post filter. One of the primary uses of the K2533-JJ Water Filter is as a system component. Systems can be designed to incorporate the various lengths and diameters - either all the same size or intermixed - to meet specific filtration needs. The OMNIPURE K2533-JJ Acid Washed GAC Water Filter can be used in icemakers, refrigerators, beverage equipment, drinking fountains, under the counter systems, RO Systems and in conjunction with purification systems. The OMNIPURE K2533-JJ GAC water filter is an acid washed granular activated carbon filter used to reduce taste, odor and chlorine taste and odor.