Feature: 1) System pressurized, ideal for large hot water projects; 2) High absorption coefficient due to first grade selective coating; 3) Durable aluminium alloy frame ensuring long life-span; 4) Toughen glass cover guarantying the products safety; 5) Well-chosen insulation material minimizing the energy loss; 6) Specialized fasten system make the installation easy and reliable; 7) Production as per European standards strictly; 8) Perfect performance through year, ideal freeze resistance character make it possible to enjoy hot water in winter; 9) Reserving as many as 4 I/O result in more flexible and more convenient installation as well as more application; 10) Easy to implement architecture integration. unstinted installed location, even be used as a component of the building; 11) Warranty: 25 years Specification 1. Absorber: integrated Cermet Coated Aluminum produced by Alanod Germany; 2. Frame material : stainless steel; 3. Cover: Ultra Transparent Clear Tempered Glass 4. Circulation pipe: red copper; 5. Insulation: glass wool; 6. Glass tube: 70mm*1700mm metal glass vacuum tube; 7. Rubber seals and rings: silicone rubber; 8. Maximum operating pressure: 8bar - 116psi 9. Collector Efficiency: 80%