This HYDRONIX ICF-6Q is equipped with 1/4 inch Quick Connect fittings to make installation virtually tool free. This filter can be used as a polishing filter for many RO systems as well as an external fridge filter. In fact, it can be installed on nearly any 1/4 inch water line to transform any water source into a contaminant free water supply. Your coffee will taste better, your ice will improve, and any other water supply with a 1/4 inch line will benefit from the ICF-6Q.Water filters remove undesirable particles, chemicals, and microorganisms from water by means of a semipermeable barrier, adsorption, or biological processes. They are made of densely packed synthetic or natural fibers that trap suspended particles, materials that block microbes or adsorb unwanted chemicals, or substances that cause a chemical change, such as acid neutralization. For most residential, commercial, and industrial applications, water filters are manufactured in the form of replaceable cartridges that fit inside permanent housings. Filtration systems typically consist of a series of two or more types of filters, each designed to remove different contaminants. The performance of filters is measured by the minimum particle size that is blocked, the percentage of particles or microorganisms that are removed, the downstream concentration of unwanted chemicals, the maximum flow rate, and the amount of water that can be filtered before the filter must be replaced. Water filters are used in a wide range of applications, including drinking water purification, swimming pools, industrial processes, and irrigation, among others.Hydronix Water Technology is a supplier of water filtration, purification and separation products. The company, founded in 2010, is headquartered in Chino Hills, CA.