Watts Premier WP116187 Top Mount Twist Air-Gap Monitored Faucet, Brushed Nickel
- ...e air gap of the faucet, and 3/8 inch Black tube approximately 3 feet in length for the connection to the drain.
- PLUMBING CODE: This Faucet requires access to a drain connection. The Faucet conforms to all US Plumbing Codes. US Plumbing Code (5-202.13 Backflow Prevention, Air-Gap. An air gap between the water supply inlet and the flood level rim of the plumbing fixture, equipment, or nonfood equipment shall be at least twice the diameter of the water supply inlet and may not be less than 1 inch)..
- See attached installation manual in the Technical Details section.