24" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w36h36 making maintenance quick and hassle-free

making maintenance quick and hassle-free

+ Product Details Size - 25"w X 18"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 22 5/8" width X 38 5/8" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 28" OR 28" x 20" duct opening (measured at the opening)

Actual Filter Size – 19 3/4"w x 11 3/4" x 1"

24" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w36h36 making maintenance quick and hassle-free+ Product Details Perfect Fit & Easy Sizing Designed for a 24" x 22" OR 22" x 24" duct opening (measured at the opening), with actual outer dimensions of 26. 5" W x 24. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 23. 75" x 21. 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