Copper Coupling (or coupler) is a very short length of pipe or tube used in piping or plumbing, with a socket at one or both ends that allows two pipes or tubes to be joined together.
FIBERGLASS INSULATION
Thermawool Glasswool is lightweight and compressible insulation manufactured from a random felted mat of glasswool, bonded with a thermosetting resin. Its high tensile strength resilience