30" X 8" Baseboard Return Air Grille - HVAC Vent Duct Cover - 7/8" Margin Turnback For Flush Fit With Baseboard Work - White 2-Way Deflection actual front end outer dimensions

actual front end outer dimensions are 5" diameter

3-cone supply grille

+ Product Details Size – 22"w X 14"h is the size for the duct opening measurement only

Actual Filter Size – 31 3/4"w x 23 3/4" x 1"

30" X 8" Baseboard Return Air Grille - HVAC Vent Duct Cover - 7/8" Margin Turnback For Flush Fit With Baseboard Work - White 2-Way Deflection actual front end outer dimensions+ Product Details Size 30"w X 8"h Is The Size For The Duct Opening Measurement Only, Actual Front End Outer Dimensions Are 31. 75" Width X 9. 75" Height SEE BELOW IN DESCRIPTION How To Measure A Grille Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was just waxed. High Quality Easy unrestricted airflow for your HVAC system 7 8" margin turnback. Carefully Shrink Wrapped With cardboard backing to prevent damage in shipment