Fits 24x6 Duct Opening Stamped Steel Return Air Grille Vent Cover Grille for Sidewall and Ceiling in White Surface Dimensions: 25.75"W X 7.75"H (24" W x 6" H Duct Opening) Easy adjust air flow control

Easy adjust air flow control with central lever

This added protection extends the lifespan of the connector while maintaining dependable performance in demanding environments

This product has listed size 12“w X 8”h is for duct opening measurement only

•Two way air flow deflection design

Size selection guide: 1) take the vent cover off the wall or ceiling

Fits 24x6 Duct Opening Stamped Steel Return Air Grille Vent Cover Grille for Sidewall and Ceiling in White Surface Dimensions: 25.75"W X 7.75"H (24" W x 6" H Duct Opening) Easy adjust air flow controlThe Listed size 24"x6" is for inside duct opening measurement, actual outside dimension is 25. 75"x7. 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