24" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w25h25 Check Out This Asin For

Check Out This Asin For Matching T-Bar Drop-Ceiling Grille: B007CNEJZK

Actual Filter Size – 29 3/4"w x 33 3/4" x 1"

+ Product Details Perfect Fit & Easy Sizing - Designed for a 16" x 30" OR 30" X 16" duct opening (measured at the opening)

+ Product Details Size - 4"w X 16"h is the size for the duct opening measurement only

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24" x 30" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w25h25 Check Out This Asin For+ Product Details Perfect Fit & Easy Sizing Designed for a 24" x 30" OR 30" x 24" duct opening (measured at the opening), with actual outer dimensions of 26. 5" W x 32. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 23. 75" x 29. 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