Avalon Air Gap Heavy Duty Chrome Finish.

Chrome Plumbing codes call for an air gap between portable water and a drain. This gap is usually about the distance between the faucet and the top of the sink or bathtub (one inch or more). Basically, the air gap is there to prevent accidental backflow. If contaminated water backflows, it can cause serious health risks.

Prevents Drain Water From the Sink Back-Flow to Dish Washer Fully Assembled and Easy to Install Corrosion and Rust-Resistant Finish PEACE-OF-MIND: Designed for hassle-free installation Chrome Finished