Air condition bracket Made of pressed steel, painted with highly or stainless steel Weatherproof polyester powder. All the screws supplied are galvanized. Size(mm): a)420 x 420;b)460 x 460;c)550 x 550;d)550 x 610 BTU:a)7000-15000;b)7000-18000;c)13000-24000;d)18000-34000 Load(KG):a,b)150 c,d)200 Packaging:carton