24" x 28" Cube Core Eggcrate Return Air Filter Grille for 1" Filter steel and waste gases transmission lines

and waste gases transmission lines

Tamper-Proof Design – Provides robust protection to prevent unauthorized access and ensure consistent thermostat settings

+ Product Details Perfect Fit & Easy Sizing - Designed for a 18" x 24" OR 24" x 18" duct opening (measured at the opening)

powder-coated surface is scratch-resistant

actual front end outer dimensions are approximately 20 5/8" width X 32 5/8" height -

24" x 28" Cube Core Eggcrate Return Air Filter Grille for 1" Filter steel and waste gases transmission lines+ Product Details Perfect Fit & Easy Sizing Designed for a 24" x 28" OR 28" x 24" duct opening (measured at the opening), with actual outer dimensions of 26. 5" W x 30. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 23. 75" x 27. 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