18" Diameter - 90° Degree Adjustable Elbow - 1 PACK w30h30 accordion dt { margin-bottom: 10px

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Actual Filter Size – 21 3/4"w x 11 3/4" x 1"

Design – The pipe is designed to work effectively

+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 14" or 14" x 8" duct opening (measured at the opening)

Actual Filter Size – 7 3/4"w x 35 3/4" x 1"

18" Diameter - 90° Degree Adjustable Elbow - 1 PACK w30h30 accordion dt { margin-bottom: 10px+ 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