CUT. PUSH. DONE. Plug the end of PEX, copper, CPVC, PE-RT and HDPE pipe for a clean cutoff of the flow of water. Innovative push-to-connect design makes for quick and easy installation and removal. Ideal for working in tight spaces. Faster install time and ease of use reduces installation errors. The SharkBite Connection System makes any plumbing project fast and easy thanks to unique push-to-connect technology. When you insert a pipe into a SharkBite quick-connect fitting, the fitting's stainless-steel teeth bite down and grip the pipe, while its special O-ring compresses to create a watertight seal.