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+ Product Details Size – 14"w X 16"h is the size for the duct opening measurement only
+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 26" or 26" x 8" duct opening (measured at the opening)
+ Product Details Size – 22"w X 36"h is the size for the duct opening measurement only
Ideal for Walls & Ceilings: Designed for seamless installation in standard 12" X 10" duct openings
+ Product Details Size – 18" x 28" or 28" x 18" is the size for the duct opening measurement only
34" x 18" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Return + Product Details Size –+ Product Details Perfect Fit & Easy Sizing Designed for a 34" x 18" Or 18" x 34" duct opening (measured at the opening), with actual outer dimensions of 36. 5" W x 20. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 33. 75" x 17. 75" x 1" Premium Airflow Efficiency High performance cube core eggcrate design allows 95% airflow efficiency, reducing energy costs and maximizing HVAC system lifespan. Durable, Rust Free Aluminum
US$ 22.88
US$ 54.57
US$ 110.31
US$ 113.75