Solar Water Heater at reasonable price with fitting delivery. ✅ 10 years water tank replacement guarantee ☑️ 25 years service warrantee 🔹Brand: Bigsun 🔹Design: Vacuum Tube 🔹Manifold(Interior): Copper Red 🔹Manifold(Exterior): Aluminum Alloy 🔹Tube Dimension(mm): 58mm x 1.8m /47mm x 1.5m 🔹Heat Preservation: 72 Hours 🔹Max Pressure: 6 Bars 🔹Hail Resistance: 25mm 🔹Coating: Stainless Steel 🔹Heat Pipe: Anti-Freezing > -35 degree 🔹Outer Tank: Stainless Steel