16" x 34" or 34" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible with Duct 8" actual front end outer dimensions

actual front end outer dimensions are approximately 36 5/8" width X 32 5/8" height

Actual Filter Size – 25 3/4"w x 33 3/4" x 1"

they seamlessly integrate into your space

while the ingenious dial-controlled damper empowers you to effortlessly regulate airflow using your foot

16" x 34" or 34" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible with Duct 8" actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 16" x 34" OR 34" X 16" duct opening (measured at the opening), with actual outer dimensions of 18. 5" W x 36. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 15. 75" x 33. 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