10" X 20" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES w4h4 this discreet grill optimizes airflow

this discreet grill optimizes airflow discreetly and beautifully

Actual Filter Size – 19 3/4"w x 5 3/4" x 1"

with actual outer dimensions of 36

actual front end outer dimensions are approximately 25" width X 25" height

Actual Filter Size – 29 3/4"w x 33 3/4" x 1"

10" X 20" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES w4h4 this discreet grill optimizes airflow+ Product Details Size 10"w X 20"h is the size for the duct opening measurement only, [Outer Dimensions: 12. 5"w X 22. 5"h] Actual Filter Size 9 3 4"w x 21 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,