24" X 24" Steel Return Air Filter Grille for 1" Filter - Removable Frame - * Filter Included * [Outer Dimensions: 26 5/8" X 26 5/8"] 18" Round Duct Pipe if your hole is 20" Compatible With Duct 7in Applications This sheet metal DDAG-A-1212
Yard notes & kiln story
Description
if your hole is 20" wide by 14" tall
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+ Product Details Size – 24" x 24" is the size for the duct opening measurement only
+ Product Details Size - 10"w X 10"h is the size for the duct opening measurement only
and smooth surface
24" X 24" Steel Return Air Filter Grille for 1" Filter Removable Frame * Filter Included * [Outer Dimensions: 26 5 8" X 26 5 8"] 18" Round Duct Pipe if your hole is 20" Compatible With Duct 7in Applications This sheet metal DDAG A 1212 if your hole is 20" wide by 14" tall querySelector('