An angle stop is a small, L-shaped valve typically made of brass with a chrome or nickel finish. It has a 90-degree bend in its body, which allows it to connect to a water supply pipe coming out of a wall or floor and direct the flow upward or outward to a fixture. One end of the valve has a compression nut or threaded connection for attaching to the supply pipe, while the other end has a smaller outlet, usually 3/8-inch compression, for connecting a flexible supply line. The valve features a handle, which can be a small oval wheel for multi-turn valves or a lever for quarter-turn ball valves. The overall size is compact, designed to fit neatly behind toilets, under sinks, or in confined spaces. Visually, it resembles a small faucet handle attached to a bent pipe fitting. Understanding its appearance helps homeowners identify it quickly during maintenance or emergencies, distinguishing it from straight-stop valves or other plumbing components.
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