Sharkbite 24987 1/2" x 1/4" (3/8" Od) Comp Tee Stop Instant push-fit connection for increased ease-of use. No soldering, clamps, unions, or glue required Fittings certified to 200 psi max and 200 degree f max. Proven durability and quality Integral tube liner valve for pex installations: means no loose components and ensures a secure, reliable connection