Delta Beverage Faucets conveniently provide purified drinking water in a wide range of styles and finishes. Air gaps are integrated within the faucet for easy use with a reverse osmosis system. Delta Beverage Faucets are for cold water installation only and ideal for any reverse osmosis (RO), under-the-counter water filtration systems, or chillers but cannot be used with Instant Hot tanks. If the installation does not require an air gap, the connection can simply be cut or coiled out of the way under the deck. Perfect for the pantry, butler's kitchen, or bar, but stylish enough to be featured next to your main faucet. Delta faucets with Diamond Seal Technology perform like new for life with a patented design that reduces leak points, is less hassle to install, and lasts twice as long as the industry standard. You can install with confidence, knowing that Delta beverage faucets are backed by our lifetime limited warranty.