8" Diameter - 90° Degree Adjustable Elbow - 4 PACK Copper Coil + Product Details Size –

+ Product Details Size – Sheet metal duct board take off start collar is 12" and it is compatible with duct 12"

and the Tank Cover is also made of High Quality Flame Retardant Metal

With precise measurements and easy installation

+ Product Details Size & Compatibility – The size of the side round ceiling box is 8" X 8" X 6" and it is compatible with duct 6"

8" Diameter - 90° Degree Adjustable Elbow - 4 PACK Copper Coil + Product Details Size –+ Product Details Size 8" round duct sheet metal elbow 30 gauge galvanized crimped end connection adjustable from 5 90 Premium Quality Made of galvanized metal to prevent corrosion, oxidation & rust from water & moisture that lasts longer requiring less maintenance Save money with this energy efficient material, maximizes airrflow and reduces fire hazards. Applications 30 Gauge thick & made of thick & durable galvanized sheet metal used for HVAC