Specifications: Copper pipe fitting Specification: 1. Copper pipe: O. D 28.58mm X wall thickness1.2mm O. D 34.9mm X wall thickness1.5mm O. D 19mm x wall thickness 1mm O. D 16mm x wall thickness 1mm 2. Number of hole: FM 3~30 3. Distance of hole:25.4mm,50.8mm,76.2m Specification match CSA B137.5-99