20"W X 20"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 21.875"W X 21.875"H] Supply Grille + Product Details Size – 4 X 12 Is CRFG2028 Width_14in
Yard notes & kiln story
Description
+ Product Details Size – 6"w X 14"h is the size for the duct opening measurement only
align-items: center
European: EN 10270-1-SM
1-1/8" - 2334 PSI
High Quality – Solid stamped steel with counter-sunk screw holes (screws included) and no sharp edges
20"W X 20"H [Duct Opening] ALUMINUM RETURN GRILLE Easy Air Flow Linear Bar Grilles [Outer Dimensions: 21.875"W X 21.875"H] Supply Grille + Product Details Size – 4 X 12 Is CRFG2028 Width_14in + Product Details Size – 6"w X 14"h is the size for the duct opening measurement only align items: center