Faucet Features: Oil Rubbed Bronze Finish. Variable Flow Lever for dispensing. Top Mount Design – you’ll never need to crawl below the sink again! Reduces installation labor. Totally lead free (components are stainless steel or non-metallic). Ceramic disc for durability. One style works for air gap and non air gap installations. NSF certified for material requirements. Air Gap: This faucet conforms to US plumbing codes and is designed for dispensing water from a Reverse Osmosis system or a Water Filtration system that requires a drain connection with an Air-Gap. Width: 2.25 (inches at base) Height: 11.50 (inches from base to top of curve)Tubing Specifications: 3/8 inch Blue collet for the product drinking water line. 1/4 inch Red collet for connecting to the rinse water portion of the filtration system. 3/8 inch Black collet for the connection to the drain. Tubing not included.