The faucet handle is the part of the bathroom sink faucet that controls the water flow and temperature. It is usually located on top of the spout or on the side of the faucet. The handle can come in various shapes and sizes, such as a knob, lever, or cross handle. It is an essential component of the faucet and allows you to easily turn the water on and off.1. Faucet Handle
The spout is the part of the faucet where the water flows out. It is typically a long, curved or straight tube that extends over the sink. The spout can also come in a variety of styles and finishes to match the overall design of the bathroom. Some spouts also have a pull-out or pull-down feature, which allows you to easily direct the water flow to different areas of the sink.2. Spout
The aerator is a small device located at the end of the spout that mixes air with the water. It helps to reduce splashing and conserve water by creating a smooth and even flow. A clogged aerator can cause low water pressure or irregular water flow, which can be easily fixed by cleaning or replacing it.3. Aerator
The cartridge is the heart of the bathroom sink faucet and is responsible for controlling the water flow and temperature. It is a small cylinder-shaped component that sits inside the faucet body and is usually made of ceramic or brass. The cartridge can wear out over time and may need to be replaced if the faucet starts to leak or if the water flow becomes irregular.4. Cartridge
The valve is another important part of the faucet that controls the water flow and temperature. It is typically located inside the faucet body and works together with the cartridge to regulate the water flow. The valve can be a ball, disc, or compression type, and it is essential for the proper functioning of the faucet.5. Valve
The supply lines are the pipes that connect the faucet to the water supply. They are usually made of flexible braided steel or plastic and are responsible for delivering water to the faucet. The supply lines are usually hidden under the sink, but they can be easily accessed for maintenance or replacement if needed.6. Supply Lines
The drain is the part of the bathroom sink that allows the water to flow out. It is located at the bottom of the sink and is usually covered by a stopper or a strainer. The drain can become clogged with hair, soap scum, and other debris, which can cause water to back up and create a mess. Regular cleaning and maintenance of the drain are essential to keep the sink functioning properly.7. Drain
The pop-up assembly is a mechanism that controls the stopper on the bathroom sink. It is connected to the drain and can be operated by a lever or a knob on the faucet. When the stopper is pushed down, it closes the drain and prevents water from flowing out. When it is pulled up, it opens the drain and allows the water to flow out. The pop-up assembly is an important component for filling and draining the sink.8. Pop-Up Assembly
The escutcheon is a decorative plate that covers the holes in the sink or countertop where the faucet is installed. It provides a finished look and helps to prevent water from seeping into the holes. The escutcheon can come in different shapes and sizes, and it is an important part of the faucet's overall design.9. Escutcheon
The mounting hardware is the set of screws, nuts, and brackets that are used to secure the faucet to the sink or countertop. It is an essential part of the installation process and ensures that the faucet is securely attached. The type of mounting hardware used may vary depending on the type of faucet and sink, but it is important to follow the manufacturer's instructions for proper installation.10. Mounting Hardware
Different Styles of Bathroom Sink Faucets
![parts of a bathroom sink faucet diagram](https://contentgrid.homedepot-static.com/hdus/en_US/DTCCOMNEW/Articles/parts-of-a-sink-section-4.jpg)
Single Handle Faucets
![parts of a bathroom sink faucet diagram](https://contentgrid.thdstatic.com/hdus/en_US/DTCCOMNEW/Articles/parts-of-a-sink-section-3.jpg)
Two Handle Faucets
![parts of a bathroom sink faucet diagram](https://secure.img1-ag.wfcdn.com/im/12061308/compr-r85/9532/95325631/bathroom+sink+parts+diagram.jpg)
Wall-Mounted Faucets
![parts of a bathroom sink faucet diagram](http://behindtheshower.com/wp-content/uploads/2020/02/b641f5114383cfde5d2c8989eb7cdcd8.png)
Vessel Sink Faucets
![parts of a bathroom sink faucet diagram](https://plumbingsniper.com/wp-content/uploads/2021/05/kitchen-sink-drain-diagram-1024x791.jpg)