20" X 12" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Insulated Line Set Ample Storage Store larger gear 14" Round Duct Pipe For 10 duct opening FR M 414 White

Ample Storage Store larger gear and power tools in the roomy middle compartment

Put in frame and lock the door into place

+ Product Details Size – 24"w X 10"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 24" OR 24" x 20" duct opening (measured at the opening)

20" X 12" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER EASY AIRFLOW LINEAR BAR GRILLES Insulated Line Set Ample Storage Store larger gear 14" Round Duct Pipe For 10 duct opening FR M 414 White Ample Storage Store larger gear and power tools in the roomy middle compartment Put in frame and lock the door into place