SharkBite Max push-to-connect fittings allow you make pipe connections with half the insertion effort while withstanding double the burst pressure. Featuring a newly designed stainless-steel retainer, SharkBite Max delivers additional strength and durability while providing a 250 psi pressure rating. The re-engineered body allows you to insert the pipe using less effort and doesnt require a PEX tube liner. No soldering, clamps, unions, glue, or special tools are required for installation. They are the fastest way to connect PEX, copper, CPVC, PE-RT and HDPE pipe. The fitting can be rotated after installation for quick adjustments, and removing the fitting is just as fast with a disconnect tool, allowing fittings and valves to be changed or reused. (SharkBite push-to-connect fittings are the fastest when compared to other conventual plumbing methods. All other comparisons relate to first generation SharkBite push-to-connect products.) Third-party listed, compliant with applicable U.S. and Canadian plumbing codes. 25-year warranty when properly installed on PEX, copper, CPVC and PE-RT. Five-year warranty when properly installed with HDPE SDR-9. Patented technology.