... thickness),over pressure.4.Heat preservation material: high density fiber glass ( Back: 50mm fiber glass insulation)5.Frame: thicken aluminum alloy plate, color optional ... .9-1Outer dimension L*W*T(MM)2400X800X80Cover glass material & thicknesslow iron textured tempered glass, 4mmCopper Header Pipes(mm)D22*0.6Copper ...