3/8" x 1/2", Pex Barb Swivel Elbow, Use To Connect Pex Tubing To A Male Threaded Connection At A 90 Degree Angle, Sharkbite Pex Barb Fittings Are Compatible For Potable Water Distribution & Hydronic Heating Applications, Can Be Used In Both Stainless Steel Clamp System Or A Copper Crimping System.