18" X 26" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 20 5/8" X 28 5/8"] Color_Black + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size – 15" Wooden Corner Baseboard Grille

+ Product Description Upgrade your HVAC system with our 6" Round Air Vent Supply Grille

+ Product Details Size - 34"w X 18"h is the size for the duct opening measurement only

Installation Location – Wall or door mount - door thickness up to 32mm - anodised finish - smooth & beautiful

Actual Filter Size – 31 3/4"w x 33 3/4" x 1"

18" X 26" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 20 5 8" X 28 5 8"] Color_Black + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size – 15" Wooden Corner Baseboard Grille + Product Description Upgrade your HVAC system with our 6" Round Air Vent Supply Grille