18" Diameter - 90° Degree Adjustable Elbow - 1 PACK Curved Blade Steel + Product Details Size -

+ Product Details Size - 6"w X 28"h is the size for the duct opening measurement only

and ducting while maintaining easy access to critical points in your wall or ceiling

this easy-to-install grille fits seamlessly into any standard return filter opening

+ Product Details Size - 12"w X 4"h is the size for the duct opening measurement only

18" Diameter - 90° Degree Adjustable Elbow - 1 PACK Curved Blade Steel + Product Details Size -+ Product Details Size 18" 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