12" X 12" Baseboard Return Air Grille - HVAC Vent Duct Cover - 7/8" Margin Turnback For Flush Fit With Baseboard Work - White Grille + Product Details Size - Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size - 32"w X 16"h X 2"d (for duct opening measurement only)

Actual Filter Size – 29 3/4"w x 13 3/4" x 1"

Design – This airflow control component are made to connect to HVAC diffuser and restrict airflow

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

Heavy-gauge all-steel construction

12" X 12" Baseboard Return Air Grille HVAC Vent Duct Cover 7 8" Margin Turnback For Flush Fit With Baseboard Work White Grille + Product Details Size Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size 32"w X 16"h X 2"d (for duct opening measurement only) Actual Filter Size – 29 3 4"w x 13 3 4" x 1"