SharkBite 23389 Faucet and Toilet Kit, 3/8-Inch O.D. Connects copper, PEX, or CPVC in any combination No soldering, unions, clamps or glue required Certified to 200 PSI of pressure and 200 degrees Fahrenheit Toilet kits contain 1 connector, an angle stop, and 1 5 ft., coil of 1/4-Inch (3/8-Inch OD) PEX tubing No more problems with flexible lines that are too long or too short