32" x 36" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Insulated Line Set actual front end outer dimensions

actual front end outer dimensions are approximately 10 5/8" width X 32 5/8" height

The integrated eight-tumbler lock system

Actual Filter Size – 25 3/4"w x 25 3/4" x 1"

Actual Filter Size – 29 3/4"w x 13 3/4" x 1"

+ Product Details Size - 36"w X 10"h is the size for the duct opening measurement only

32" x 36" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Insulated Line Set actual front end outer dimensions+ 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