Air-conditioning multilayer pipe is five-layer composite pipe that combines the advantages of a metal and plastic pipe offers the high degree of flexibility and toughness, coupled with high pressure and temperature resistance. multilayer pipe provides you the same performance as the copper pipe does but much lower price By connecting with our relevant fittings, multilayer pipe can switch to work as the copper pipes in popular sizes (such as 1/4, 3/8 , 1/ and 5/8), the installation can be easily finished only by spanners.