12" X 10" Baseboard Return Air Grille - HVAC Vent Duct Cover - 7/8" Margin Turnback For Flush Fit With Baseboard Work - White 14" Diameter actual front end outer dimensions

actual front end outer dimensions are 19" Width X 13" Height

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

+ Product Details Size - 12"w X 18"h X 2"d (for duct opening measurement only)

actual front end outer dimensions are approximately 11

+ Product Details Size – 20"w X 14"h is the size for the duct opening measurement only

12" X 10" Baseboard Return Air Grille - HVAC Vent Duct Cover - 7/8" Margin Turnback For Flush Fit With Baseboard Work - White 14" Diameter actual front end outer dimensions+ Product Details Size 12"w X 10"h Is The Size For The Duct Opening Measurement Only, Actual Front End Outer Dimensions Are 13. 75" Width X 11. 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