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This air gap faucet with a chrome finish is designed for dispensing water from a reverse osmosis system which requires a drain connection with an air gap. This faucet conforms to US plumbing codes. It consists of a 4 FT 1/4 inch feed tube, 4 FT 1/4 inch rinse water and 4 FT 3/8 inch drain tube that all come pre-attached.