2 Pack - 5" Diameter 90 Degree Adjustable Elbow - 30 Gauge Galvanized - Crimped End Connection Compatible With Duct 8in + Product Details Size -

+ Product Details Size - 30"w X 6"h is the size for the duct opening measurement only

Crafted for durability and rust-resistance

+ Product Details Size – 12" x 18" or 18" x 12" is the size for the duct opening measurement only

+ Product Details Size – The size of a galvanized sheet metal stack boot is 10" X 3

The first number in a grille size

2 Pack - 5" Diameter 90 Degree Adjustable Elbow - 30 Gauge Galvanized - Crimped End Connection Compatible With Duct 8in + Product Details Size -+ Product Details Size 5" 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