1. Maniold casing material: 304 2B stainless steel or power coated galvanized steel
2. Frame material: 304 2B stainless steel or power coated galvanized steel
3. Header pipe material: C12200 copper
4. Insulation: Polyurethan 55mm/rock wool
5. Rubber seals and rings: UV stabilized high temperature silicone rubber
6. Testing pressure: 9 bar