36" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible with Duct 10" Copper coil line set fits

Copper coil line set fits most ductless mini split air conditioners

+ Product Description Introducing the 6" Butterfly Damper – Your Solution for Controlled Airflow

Actual Filter Size – 31 3/4"w x 13 3/4" x 1"

3/4" - 2981 PSI

36" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible with Duct 10" Copper coil line set fits+ Product Details Perfect Fit & Easy Sizing Designed for a 36" x 12" OR 12" x 36" duct opening (measured at the opening), with actual outer dimensions of 38. 5" W x 14. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 35. 75" x 11. 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