Specification: Manifold box: inner tank: stainless steel 304-2b, 0.4mm. Outer tank: stainless steel or galvanized steel. Frame: profile stainless steel, 1.2mm or more, or galvanized steel, 1.2mm or more. Types of tubes: 47-1500, 58-1800, or other types. No. Of tubes: from 10 tubes to 50 tubes. Characteristic: High efficiency, low cost Suitable for project or home use No pressure at all, very safe easy installation Beautiful outlook, match the building perfectly large absorbing area
