25" X 14" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLE Compatible with Duct 4" actual front end outer dimensions Width_20in These won t hinder RFG1620 FBA

actual front end outer dimensions are approximately 14 5/8" width X 28 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)

Design – Heavy gauge steel

The lightweight yet rigid construction ensures durability without sacrificing ease of handling

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25" X 14" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER EASY AIRFLOW LINEAR BAR GRILLE Compatible with Duct 4" actual front end outer dimensions Width_20in These won t hinder RFG1620 FBA actual front end outer dimensions are approximately 14 5 8" width X 28 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)