Fulfillment by Amazon (FBA) is a service we offer sellers that lets them store their products in Amazon's fulfillment centers, and we directly pack, ship, and provide customer service for these products. Something we hope you'll especially enjoy: FBA items qualify for FREE Shipping and Amazon Prime.If you're a seller, Fulfillment by Amazon can help you grow your business. Learn more about the program. Built-in a standard 5 micron 10”x 2.5” Carbon Block Cartridge and ceramic filter that removes 95% of chlorine, odors, sand, silt, sediment and rust from your drinking water. Post carbon filter can let the water taste better. 1.Original water goes into the filter from the faucet 2.Filter by ceramic filter element and carbon block filter to remove harmful substances from water 3.Get fresh and lean water. Easy to install directly on the faucet, including a variety of accessories.Fits most standard faucets in the market.