14" x 34" or 34" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 12" Diameter this thermostat guard is the

this thermostat guard is the perfect solution for safeguarding your temperature controls

actual front end outer dimensions are approximately 38 5/8" width X 14 5/8" height -

actual front end outer dimensions are approximately 14 5/8" width X 20 5/8" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 18" x 22" OR 22" x 18" duct opening (measured at the opening)

14" x 34" or 34" x 14" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 12" Diameter this thermostat guard is the+ Product Details Perfect Fit & Easy Sizing Designed for a 14" x 34" OR 34" X 14" duct opening (measured at the opening), with actual outer dimensions of 16. 5" W x 36. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 13. 75" x 33. 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