These are becoming the standard in bathroom faucets because they are nearly maintenance free and very long lasting. Ceramic disc valves contain two fire-hardened ceramic discs that control water flow by moving together or apart.Washerless Cartridge
These valves are easier to repair and tend to cost less than other valve styles, but they tend to require more maintenance over the lifetime of your faucet. Washerless cartridges use neoprene seals to prevent leaking.Pressure Balanced
These valves maintain a consistent water temperature by sensing changes in either hot or cold water entering the valve, and adjusting the other to keep the temperature the same.Thermostatic
Uses a thermal actuator to automatically adjust hot and cold water in order to maintain the original temperature setting.
There are many materials to choose from, each with their own attributes. Some of the more common materials used in faucets and accessories are Brass, Stainless Steel, Metal and Zinc Alloys. These offer excellent corrosion and tarnish resistance while allowing many finish options.