10" Circular Round Aluminum HVAC Supply Grille Air Diffuser - With Butterfly Damper - Vent Duct Cover [Outer Dimensions: 12"] w22h22 actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

actual front end outer dimensions are approximately 28 5/8" width X 16 5/8" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 10" or 10" x 8" duct opening (measured at the opening)

+ Product Details Size – 28" x 28" is the size for the duct opening measurement only

Actual Filter Size – 31 3/4"w x 17 3/4" x 1"

Actual Filter Size – 29 3/4"w x 31 3/4" x 1"

10" Circular Round Aluminum HVAC Supply Grille Air Diffuser With Butterfly Damper Vent Duct Cover [Outer Dimensions: 12"] w22h22 actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG A 1212 actual front end outer dimensions are approximately 28 5 8" width X 16 5 8" height + Product Details Perfect Fit & Easy Sizing Designed for a 8" x 10" or 10" x 8" duct opening (measured at the opening)