As a licensed plumber, the part I get called about most after a “small” DIY job goes wrong is the under-sink shut-off valve. A stuck or weeping angle stop turns a five-minute faucet swap into a flooded cabinet. Replacing an old multi-turn valve with a modern quarter-turn stop is one of the highest-value upgrades a homeowner can make, and most cost under $15.
Quick Picks
- Best Overall: BrassCraft Quarter-Turn Angle Stop
- Easiest to Install: SharkBite Push-to-Connect Stop Valve
- Best Budget: Eastman Compression Angle Stop
BrassCraft Quarter-Turn Angle Stop — Best Overall
Solid brass body, a quarter-turn ceramic disc that doesn’t seize after years of sitting open, and a 3/8″ compression outlet that fits almost every faucet and toilet supply line. This is what I install in my own customers’ homes.
SharkBite Push-to-Connect Stop Valve — Easiest to Install
No soldering, no compression nut to over-tighten. Push it onto the copper or PEX stub-out and you’re done. Perfect if you’re nervous about your skills — just make sure the pipe end is clean and deburred first.
Eastman Compression Angle Stop — Best Budget
Under $8 and perfectly reliable for a standard compression connection. Not as premium as the BrassCraft, but for a rental or a quick replacement it does the job.
How to Replace an Angle Stop (Pro Tips)
Shut off the main water supply first — never trust the old valve. Open a faucet to relieve pressure, then unthread or cut the old valve. Slide on the new compression nut and ferrule, hand-tighten, then go one half-turn past hand-tight with a wrench. Don’t overtighten; that’s how you crack the ferrule.
FAQ
Quarter-turn vs. multi-turn? Quarter-turn ball/ceramic valves are far more reliable and won’t seize. Always choose quarter-turn.
Compression vs. push-to-connect? Compression is cheaper and lower-profile; push-to-connect is faster and beginner-friendly.
What size do I need? Most under-sink supplies are 1/2″ inlet (or 3/8″ compression to a copper stub) with a 3/8″ outlet. Measure before buying.
Bottom Line
For most homeowners the BrassCraft quarter-turn is the right buy — pay a few dollars more for a valve you’ll never have to think about again.
FAQ
What size shut-off valve do I need?
Most US sink supply lines use a 1/2-inch inlet (or 3/8-inch compression) with a 3/8-inch outlet. Check your existing valve or take it to the store to match.
Quarter-turn vs multi-turn valves — which is better?
Quarter-turn ball valves are more reliable and easier to use; multi-turn (compression) valves are cheaper but more prone to sticking and leaking over time.
Can I replace a shut-off valve myself?
Yes — shut off the main water, drain the line, and swap it. Push-to-connect valves make it a no-solder, 10-minute job.