30" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Copper Coil Can be hooked up with

Can be hooked up with our "Butterfly Dampers" for precise airflow control

actual front end outer dimensions are approximately 28 5/8" width X 20 5/8" height

+ Product Details Universal Fit - Accommodates almost any thermostat with dimensions of 8-1/4" H x 5-3/8" W x 3-1/2" D

+ Product Details Size – 14" x 28" or 28" x 14" is the size for the duct opening measurement only

Engineered for easy installation

30" x 8" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Copper Coil Can be hooked up with+ Product Details Perfect Fit & Easy Sizing Designed for a 30" x 8" OR 8" x 30" duct opening (measured at the opening), with actual outer dimensions of 32. 5" W x 10. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 29. 75" x 7. 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