32" x 36" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible with Duct 6" Actual Filter Size – 33

Actual Filter Size – 33 3/4"w x 27 3/4" x 1"

+ How To Measure A Grille Overall Size:

High Quality – High-quality aluminum with counter-sunk screw holes (screws included) and no sharp edges

+ Product Details Size - 32"w X 6"h is the size for the duct opening measurement only

this grille enhances air circulation

32" x 36" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible with Duct 6" Actual Filter Size – 33+ Product Details Perfect Fit & Easy Sizing Designed for a 32" x 36" Or 36" x 32" duct opening (measured at the opening), with actual outer dimensions of 34. 5" W x 38. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 31. 75" x 35. 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