The image shows an angle valve, also known as an angle stop valve. This type of valve is commonly used in plumbing to control and shut off water flow to fixtures.
Here's information for shopping:
Function: It allows for a 90-degree turn in the water flow and is used to shut off the water supply to individual fixtures like sinks, toilets, or appliances.
Material: Good quality angle valves are typically made of brass or stainless steel for durability.
Types: Quarter-turn angle valves are common, offering quick and efficient operation with a 90-degree turn of the handle.