12" X 10" Baseboard Return Air Grille - HVAC Vent Duct Cover - 7/8" Margin Turnback For Flush Fit With Baseboard Work - White Return rattle free airflow for your

rattle free airflow for your air-conditioning and heating system as well as smooth opening and closing back dampers

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

actual front end outer dimensions are approximately 12 5/8" width X 8 5/8" height -

+ Product Details Size – 14" x 30" or 30" x 14" is the size for the duct opening measurement only

Actual Filter Size – 27 3/4"w x 25 3/4" x 1"

12" X 10" Baseboard Return Air Grille - HVAC Vent Duct Cover - 7/8" Margin Turnback For Flush Fit With Baseboard Work - White Return rattle free airflow for your+ 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