... per hole 3.15Years Warranty for tube 4OEM Compact Pressured solar water heater 1.CE,ISO9001,CCC2.pressurized and USD16.00-19.86 ... use of special effects, water temperature and faster heating. Advanced exh-aust work Arts, the heat collector tube to a smaller ... , non-troubled waters, anti-burst, antifreeze, E-nrichment process.Collector device:φ47×1500,φ58×1800Nano-nuclear engineWater tank liner:SUS304 ...