Brand: Sun-King 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: Colour Heat Pipe: Anti-Freezing > -35 degree Outer Tank: Stainless Steel/Colored Coated Inner Tank: Stainless Steel Insulation: 55mm Tank Capacity: 375ltrs. Vacuum Tubes: 30Tubes Dimensions (L*B*H) : 241cm*145cm*168cm Installation Requirements will be Extra Delivery and Installation Free inside Kathmandu, Valley 10 Years Warranty ( 3 Year Replacement and 7 Year Service Warranty )