Features: 1. Header pipe material: Copper 2. Riser pipe material: Copper 3. Absorb fins material: Copper 4. Header pipe diameter up to 22mm or 25mm 5. Riser pipe diameter up to 10mm 6. Electrophretic aluminum alloy treatment 7. Tempered glass 8. Surface coating: Black chrome 9. Frame: Aluminum alloy 10. Size(mm): 2000(L)*1000(W)*76(H) 11. Sealing profile: EPDM 12. Backing sheet: 0.5mm thickness galvanized sheet