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.