CUT. PUSH. DONE. The SharkBite Brass Crimp Ball Valve is used to control water flow and enables water supply shutoff for servicing and making repairs. Certified for use in potable water and hydronic heating systems. 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.