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 Premiers 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 wont 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 › See more product details