Brand: Sun-Shine Tube length: 1899mm Outer tube diameter: 58mm Inner tube diameter: 47mm Galss thickness: 1.6mm Thermal expansion: 3.3*10-6°c Absorptivity: ³ 93% Coating:Stainless steel Inner Tank: SUS 304 -2B with 0.5 mm Outer Tank: colour coated steel with 0.44 Frame: Stainless steel with 1.5 mm/1.2 mm Insulation: 50mm of high density polyurethane foam""" Capacity:450Ltr Dimensions (L*B*H) : 289cm*145cm*168cm Delivery and Installation Free inside Kathmandu, Valley 10 Years Warranty (3 Years Replacement and 7 Year Service Warranty)