1.U pipe solar collector; 2.easy installation, easy maitenance; 3.hign effiency, low price Specification:1. Manifold and bracket: Aluminium alloy2. U-pipe: 1). Material: TU2 ... for flow channel(mm): φ15×1; 3). U-pipe size(mm):φ8×0.6; 4). U-pipe pitch: 65mm, 70mm, 80mm, 88mm,110mm; 5 ... ; 2). size:φ47×1500, φ58×1800,φ58×2100,φ70×2100; U-type solar collector