12"W X 10"H [Duct Opening] 3-Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser [Outer Dimensions: 13.75"W X 11.75"H] 8" Diameter 5" - SEE BELOW IN

5" - SEE BELOW IN DESCRIPTION HOW TO MEASURE A GRILLE

Design – removable frame for easy filter change & cleaning - uses a 1" thick filter

Actual Filter Size – 33 3/4"w x 17 3/4" x 1"

+ Product Spec Sheet Aluminum Return Grille Spec Sheet

32"w X 8"h Is The Size For The Duct Opening Measurement Only

12"W X 10"H [Duct Opening] 3-Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser [Outer Dimensions: 13.75"W X 11.75"H] 8" Diameter 5" - SEE BELOW IN+ 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. Design Individually adjusting curved blades. Multi shutter damper with handle operator to adjust air flow. Screws Included High Quality Aluminum The premium durable aluminum will never rust and it will never wear through leaving the material with an elegant, beautiful, and smooth surface, adds a