RO FAUCET SPECIFICATIONS: This Top Mount Twist, Air-Gap Faucet has a Brushed Nickel Finish, Monitored Design, with a variable flow lever for dispensing water. The timer on the monitor is set for approximately 6 months of use for each filter change.
EASY TO INSTALL LEAK-FREE SYSTEM: Watts Premier's Reverse Osmosis home water treatment systems are easy to install. All components are an integral part of the unit, requiring fewer tube connections. Back-flow prevention valves are installed between the elements. Cartridges have double o-rings so they won't leak. If you experience a leak, look for our quick fix guide on this product's images.
TUBING SPECIFICATIONS: 1/4 inch Blue tube approximately 4 feet in length for connecting drinking water, 1/4 inch Red tube approximately 4 feet in length for connecting to the 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