12" X 6" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Compatible With Duct 10in ensuring long-lasting performance

ensuring long-lasting performance

It will be a while before you need to replace these again

even without needing to remove the thermostat

Designed for effortless installation

Ideal for inline fans

12" X 6" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Compatible With Duct 10in ensuring long-lasting performance+ Product Details Size 12"w X 6"h is the size for the duct opening measurement only, [Outer Dimensions: 14. 5"w X 8. 5"h] Actual Filter Size 13 3 4"w x 7 3 4" x 1" High Quality High quality rust free, strong aluminum construction with smooth finished edges for easy and safe use; Filter grille features a user friendly plastic latch that requires no screwdriver for opening. Installation Location Sidewall and ceiling. Design Heavier gauge than needed,