34" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Return Grille Say goodbye to pest-related worries

Say goodbye to pest-related worries as the built-in back 1/2" mesh acts as a barrier against unwanted rodents like mice

Actual Filter Size – 35 3/4"w x 7 3/4" x 1"

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

Actual Filter Size – 19 3/4"w x 25 3/4" x 1"

34" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Return Grille Say goodbye to pest-related worries+ Product Details Perfect Fit & Easy Sizing Designed for a 34" x 12" Or 12" x 34" duct opening (measured at the opening), with actual outer dimensions of 36. 5" W x 14. 5" H. Please check the measuring guide to ensure a proper fit. Filter Size 33. 75" x 11. 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