Sharkbite Elbows Allow The User To Connect Any Combination Of Copper, Pex Cpvc Or Pe-Rt Pipe Together To Form A 90 Degree Connection. With No Soldering, Clamps, Unions Or Glue Required, It?S As Simple As Inserting The Pipe Into The Fitting Deep Enough To Be Sealed By The Specially-Formulated O-Ring. Once Inserted, The Stainless Steel Teeth Bite Down And Grip The Pipe. This Push-To-Connect Fitting Is Designed For Potable Water And Radiant Heating Applications With No Access Panels Required. It Is Rated Up To 200 Degree Fahrenheit And 200 Psi.