18" X 18" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - [Outer Dimensions: 20 5/8" X 20 5/8"] Return + Product Description Enhance your Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Description Enhance your HVAC system with our Aluminum Return Filter Linear Bar Grille

with actual outer dimensions of 16

actual front end outer dimensions are approximately 22 5/8" width X 38 5/8" height -

this filter grille never rusts and withstands long-term use in any environment

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

18" X 18" Steel Return Air Filter Grille for 1" Filter Fixed Hinged [Outer Dimensions: 20 5 8" X 20 5 8"] Return + Product Description Enhance your Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Description Enhance your HVAC system with our Aluminum Return Filter Linear Bar Grille with actual outer dimensions of 16