20" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible with Duct 10" + Product Description The Clear

+ Product Description The Clear Plastic Thermostat Guard provides reliable protection and security for your thermostat while ensuring optimal functionality

with actual outer dimensions of 26

with actual outer dimensions of 16

no professional tools needed

20" x 22" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Compatible with Duct 10" + Product Description The Clear+ Product Details Perfect Fit & Easy Sizing Designed for a 20" x 22" OR 22" x 20" duct opening (measured at the opening), with actual outer dimensions of 22. 5" W x 24. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 19. 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