1 Size:for 1/8 , 1/4,3/8,1/2,5/8,3/4 inch copper tube outer layer , 2 Wall thickness:8mm ... to 12mm , 3 Materials:PE foam . Insulated ... pipe(1) Size:for 1/8 , 1/4,3/8,1/2,5/8,3/4 inch copper tube outer layer(wal thickness: 8 ... mm)(2) Wall thickness:8mm to 12mm.(3) Length:4M(4) Material ...