The SharkBite Connection System Is An Instant Push-Fit Connection That Connects Copper Tubing, CTS And CPVC Pipe In Any Combination - No Soldering, Clamps, Unions Or Glue Required. Certified To 200 PSI And 200DegF. Compact, Robust DZR Brass Body. Foundation Of A Strong, Corrosion Resistant, Durable Fitting. Design Certified To ANSI/NSF-61 And ASSE 1061 Product Standard For Use In Potable Water And Hydronic Heating Water Distribution.Approved To Be Used Underground And Behind Walls Without Access Panels. Lead Free Complaint.