The Tomlinson RO Faucet comes in 9 finishes for a better match for today's designer kitchen. These lead-free faucet fits to most brands and makes a great upgrade from the basic faucet that come with most RO systems. Features: Lever style handle Smooth operating ceramic disk element 360 degree swivel neck Protective spout tip that prevents after drip Modular air gap Preinstalled 1/4" tubing for quick connect Mounting hardware NSF listed to ANDI NSF standard 61-1999a 2 year warranty 2 1/4" base diameter (57mm) Drilled hole size needed for air gap: 7/8" Drilled hole size needed for non AG: 1/2" Additional Details ------------------------------ Product description: Retrofits most brands Smooth operating ceramic disk valve for long life operation and controlled flow High reach neck design of 12" (305mm) Unique protective spout tip prevents after drip Can be Air Gap or NON Air Gap with its removable Air Gap Module