AquaLock™ push-to-connect fittings are the first choice for reliability. Installation is fast and easy. Reduced risk of installation errors and leaks. Whether you're working with PEX, Copper, or CPVC, AquaLock has you covered. Resistant to corrosion and interlocks with multiple materials without any tools. Those who know best know when you need a connection you can count on... AquaLock it down.