16" x 22" or 22" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Aluminum Bar Installation Location – Floor

Installation Location – Floor

and with a built-in back 1/2" mesh they also protect you from annoying rodents like mice

+ Product Details Size – 6" round duct opening-

+ Product Description Upgrade your HVAC system with our 8" Round Air Vent Supply Grille

16" x 22" or 22" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Aluminum Bar Installation Location – Floor+ Product Details Perfect Fit & Easy Sizing Designed for a 16" x 22" OR 22" X 16" duct opening (measured at the opening), with actual outer dimensions of 18. 5" W x 24. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 15. 75" x 21. 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