This Tapcooler filler extension tube is great for homebrewers and small - scale beer bottlers. You can use it when your draft setup isn't at a convenient height or location for filling bottles. It allows you to set up your bottling process up to 6.5 feet away from the beer faucet. The tube comes in 3 different length options, and it has stainless - steel fittings and o - rings for a secure connection. It's pre - assembled, so you can start using it quickly without any hassle.