12" Diameter - 90° Degree Adjustable Elbow - 1 PACK w18h18 + Product Details Size -

+ Product Details Size - 20"w X 10"h X 2"d (for duct opening measurement only)

actual front end outer dimensions are approximately 18

Actual Filter Size – 24 3/4"w x 25 3/4" x 1"

+ Product Details Size - 14" X 14" is the size for the duct opening measurement only

+ Product Details Size - 26"w X 6"h is the size for the duct opening measurement only

12" Diameter - 90° Degree Adjustable Elbow - 1 PACK w18h18 + Product Details Size -+ Product Details Size 12" 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