Bathrooms need to have faucets for a decent functioning. There are lots of kinds of faucets available in many styles, colors, shapes. All the faucets can be grouped in four categories as per their working mechanisms. They can be grouped in following categories: Cartridge, Compression, Ball and Disc.
These are in fact parts of faucets that control the water flow from them. Three of these faucets are mixing faucets while the fourth is not. The compression faucet as the kitchen faucet has two controls: Hot and Cold.
Compression bathroom faucets have washers or seals that close against a valve seat to restrict water flow through the faucet body. This control is turned off when you turn the handle off. The other three types don't use washers