50 meters (164ft) insulated copper pipe is suitable for ductless mini-split systems, VRF commercial systems, AC & heat pump. It is constructed of seamless soft flexible copper tubing and tear resistant polyethylene foam insulation tube. We can produce 50 meters (164ft) insulated copper tubes both in single coil and pair (twin) coil. The copper tubing is manufactured according to ASTM B280 standard (EN 12735-1 standard or AS 1571 standard or JIS H3300 standard). Ink marking every meter or every foot in the insulation tube makes the size specification, standard and length distinguished easily.