Flexible high grade stainless steel tube 316l or 304.
Copper pipe solar water heater.
Maximum pressure up to 17 5 bar rated burst pressure 200 bar 1050 high temperature annealing heat treatment food grade.
And with fossil fuel dwindling there s a global move to look for alternative sources of energy.
Resembles corrugated flexible stainless steel pipe used in gas lines it has recently found its way into solar water heating application.