parts of solar water heater (silicon ring ) Parts of Solar Water Heater (SiliconRing )The super quality silicon material has the advanages of high temperature resistance anti-aging longtime lifespan(not less then 15 years), and so on.Tube Specification Φ47/58mm1Diameter ofWaterTank Port Φ53/Φ63mmMaterialSilicon FlangingHeight 4/4.5mm Package 1200pcs/ctn Carton Size 600*330*300mm Color White/Red2 Lead Time 10 days Note1.Diameter can be customized according to the specific requirements.2.White/Red color is also available or by specific requirements. Technical Data of Silicon Material Inspection Item Technical IndexDurometer Hardness(Shore A)52 Tensile Strength 8 Elongation 429% Tear Strength 24 KN/M Density 1.18 Mg/m3Max Working Temperature 260