36" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter return filter expanding or retracting the gap

expanding or retracting the gap to meet your precise needs

angle the louvers up for efficient cooling

High Quality Aluminum – The premium durable aluminum will never rust and it will never wear through leaving the material with an elegant

Actual Filter Size – 29 3/4"w x 15 3/4" x 1"

36" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter return filter expanding or retracting the gap+ Product Details Perfect Fit & Easy Sizing Designed for a 36" x 14" OR 14" x 36" duct opening (measured at the opening), with actual outer dimensions of 38. 5" W x 16. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 35. 75" x 13. 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