This Grid Drain is coated with PVD. PVD (Physical Vapor Deposition) is a state of the art process that bonds the finish to the faucet, creating an extremely hard surface that is by far the most durable available today.
PRODUCTS WITH PVD FINISH WILL NOT CORRODE, DISCOLOR OR TARNISH. PVD can withstand many harsh environmental factors such as salt air and hard water. This grid drain design is great if you do not want to close you sink which is perfect for all commercial and industrial use.