Push-Fit 1/2" Style Push to Connect Lead-Free Brass Coupling Bag of 5 / brass / 0.5 1/2 Inch Push-fit Barbed Coupling. Compare these to Sharkbite U008 LF. These are lead free, have all approvals, easily removable/reusable. Your satisfaction is guaranteed or your money back!! Bulk packed. The Push-Fit connection system is really taking hold. It's the easiest way to join copper, CPVC or PEX pipe in any combination ? with no soldering, clamps, unions or glue. Just insert the pipe and the stainless steel teeth bite down and grip tight, while a specially formulated O-ring compres Instant Push-Fit connection for increased ease-of-use. No soldering, clamps, unions, or glue required. Fittings certified to 200 PSI and 200F (93C). Fits copper tubing, and CTS CPVC and PEX and connects all three types in any combination.