14" x 24" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w30h30 3 * insulation density is Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

3 * insulation density is 30kgs/cbm = 0

+ Product Details Size – 12"w X 30"h is the size for the duct opening measurement only

+ Product Details Size - 24"w X 32"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 16 5/8" width X 12 5/8" height

actual front end outer dimensions are approximately 18 5/8" width X 18 5/8" height

14" x 24" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w30h30 3 * insulation density is Compatible With Duct 7in Applications This sheet metal DDAG A 1212 3 * insulation density is 30kgs cbm = 0 + Product Details Size – 12"w X 30"h is the size for the duct opening measurement only