Top quality inline GAC carbon filter that is 2" x 6" comes in fitting sizes 1/4" and 3/8" with female and quick connect connections. Easy installation. Used to reduce and remove unwanted odors, bad tastes, chlorine, and sediment from your drinking water. 6" inline carbon filters are traditionally used in reverse osmosis systems, beverage dispensers, ice makers, and others. NSF approved. We also carry other styles that are in stock. Made in the USA.