... ,packing4.Type :Straight,Elbow,Tee,Stopper,etc.5.Size for :SDR 7.4 Grade PE-X pipe from DN16mm-DN32mm6.Certificate :Watermark ... fittings are manufactured by Runzhou. 2.Provide tools also.Fittings for follow PEX pipes Pipe size and tolerance Nom.OD Outside ... be better support your business. AS Reduce elbow brass fittings for DN16-32mm SDR7.4 Grade PE-X pipe