24" X 18" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 26 5/8" X 20 5/8"] Black actual front end outer dimensions 14" Round Duct Pipe FR M 414 White For 10 duct opening

actual front end outer dimensions are approximately 52 5/8" width X 22 5/8" height -

including Ductless Mini-Split

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

+ Product Description Upgrade your HVAC system with our 8" Round Air Vent Supply Grille

Carefully shrink wrapped with cardboard backing to prevent damage in shipment

24" X 18" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 26 5 8" X 20 5 8"] Black actual front end outer dimensions 14" Round Duct Pipe FR M 414 White For 10 duct opening actual front end outer dimensions are approximately 52 5 8" width X 22 5 8" height including Ductless Mini Split