36" x 36" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 8in diameter high-impact clear plastic for long-lasting

high-impact clear plastic for long-lasting performance

+ Product Details Size – 8" x 14" or 14" x 8" is the size for the duct opening measurement only

+ Product Details Size - 12"w X 12"h X 2"d (for duct opening measurement only)

This Will Create A Cycle Of In And Out Air FLow

Multi-shutter damper with handle operator to adjust air flow

36" x 36" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 8in diameter high-impact clear plastic for long-lasting+ Product Details Perfect Fit & Easy Sizing Designed for a 36" x 36" duct opening (measured at the opening), with actual outer dimensions of 38. 5" W x 38. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 35. 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 Made from