Fits 24x14 Duct Opening Stamped Steel Return Air Grille Vent Cover Grille for Sidewall and Ceiling in White Surface Dimensions: 25.75"W X 15.75"H (24" W x 14" H Duct Opening) The listed size 8"w X

The listed size 8"w X 8"h is for duct opening measurement only

actual outside dimension is 21

It is built to last with premium non-toxic PVC core with 304 stainless steel braided outer cover for strength and protection

APPLICATIONS - Fuel line

Outdoor use only

Fits 24x14 Duct Opening Stamped Steel Return Air Grille Vent Cover Grille for Sidewall and Ceiling in White Surface Dimensions: 25.75"W X 15.75"H (24" W x 14" H Duct Opening) The listed size 8"w XThe Listed size 24"x14" is for inside duct opening measurement, actual outside dimension is 25. 75"x15. 75" Stamped Face Steel Construction with 1 2" fin spacing for high air flow applications. Screws are included for easy installation White Powder coating with matte finish Individually packed with cardboard box for ultra protection