The Westlake collection features innovative faucets that blend style, durability, and ease of use with traditional Premier quality. Westlake faucets deliver unsurpassed performance all Westlake models contain ceramic disc cartridges that provide reliable service and leak-free functionality in the demanding environment of today???s kitchen and bathroom. The physical vapor deposition (PVD) process creates a finish that is exceptionally durable and extremely resistant to scratching, tarnishing, corrosion, and discoloration. Certain models contain braided stainless steel supply lines for easy installation.