10" x 10" [Duct Opening] Ceiling Supply Diffuser Vent Cover – Corner Direction with Full Aluminum Frame, Back Blades & Opposing Blade Lever Damper [Outer Size: 13" x 13"] Condensate Pump Accessories Made in the USA –

Made in the USA – Proudly manufactured in the USA

Actual Filter Size – 33 3/4"w x 25 3/4" x 1"

12" X 12"h Is The Size For The Duct Opening Measurement Only

Total outer size of this grille is

10" x 10" [Duct Opening] Ceiling Supply Diffuser Vent Cover – Corner Direction with Full Aluminum Frame, Back Blades & Opposing Blade Lever Damper [Outer Size: 13" x 13"] Condensate Pump Accessories Made in the USA –+ Product Details Size Refers to duct opening only. The face frame extends roughly 1. 5" on each side. Do not measure the overall grille for sizing. Design All aluminum frame and back blades. Rustproof and built to last in moisture prone environments. Quiet Airflow Opposing blade damper design reduces vibration and noise for smoother air distribution. Clean Finish White powder coated surface resists chips, scratches, and discoloration over time. Easy