US$ 34.30
actual front end outer dimensions are approximately 20 5/8" width X 32 5/8" height -
justify-content: center
it effectively prevents unauthorized access
+ Product Details Perfect Fit & Easy Sizing - Designed for a 18" x 22" OR 22" x 18" duct opening (measured at the opening)
18" x 30" or 30" x 18" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Aluminum Adjustable Curved Blade actual front end outer dimensions+ Product Details Perfect Fit & Easy Sizing Designed for a 18" x 30" OR 30" x 18" duct opening (measured at the opening), with actual outer dimensions of 20. 5" W x 32. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 17. 75" x 29. 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
US$ 34.30
US$ 40.00
US$ 32.00
US$ 51.42
US$ 28.18
US$ 26.00
US$ 145.96
US$ 24.77