10" x 4" Decorative Wood Supply Air Vent HVAC Duct Cover Grille - Polished Finish Red Oak Wood - 2-Way Air Direction - [Outer Dimensions: 12w X 6"h] Compatible With Duct 6in Actual Filter Size – 9

Actual Filter Size – 9 3/4"w x 13 3/4" x 1"

actual front end outer dimensions are approximately 26 5/8" width X 30 5/8" height

each diffuser is carefully shrink-wrapped with a sturdy cardboard backing

For 14" duct opening

10" x 4" Decorative Wood Supply Air Vent HVAC Duct Cover Grille - Polished Finish Red Oak Wood - 2-Way Air Direction - [Outer Dimensions: 12w X 6"h] Compatible With Duct 6in Actual Filter Size – 910"w X 4"h Is The Size For The Duct Opening Measurement Only, Actual Front End Outer Dimensions Are 12" Width X 6" Height SEE IN DESCRIPTION HOW TO MEASURE A GRILLE Slim Sliding Metal Damper To Control and Adjust Airflow Slots Are Angled to Diversify The Airflow In 2 Way Direction Great for Wall and Floor & ceiling Applications Roundover Beveled Edges Polished Pre Finish Gloss Varnish Ready To Install Can Also Be Sanded And Re finished According To