6"W X 22"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 7.75"W X 23.75"H] Extruded Aluminum Ceiling + Product Details Size - Suitable for all AC 8in diameter 12125SDCLNGBX

+ Product Details Size - 26"w X 18"h X 2"d (for duct opening measurement only)

Optimized Comfort: By putting airflow control at your fingertips

Actual Filter Size – 19 3/4"w x 25 3/4" x 1"

+ Product Details Perfect Fit & Easy Sizing - Designed for a 10" x 14" or 14" x 10" duct opening (measured at the opening)

6"W X 22"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 7.75"W X 23.75"H] Extruded Aluminum Ceiling + Product Details Size Suitable for all AC 8in diameter 12125SDCLNGBX + Product Details Size 26"w X 18"h X 2"d (for duct opening measurement only) Optimized Comfort: By putting airflow control at your fingertips