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 Total outer size of this

Total outer size of this grille is

+ Product Details Size – 22"w X 25"h is the size for the duct opening measurement only

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

+ Product Details Size & Compatibility – The size of sheet metal pipe is 12" round x 10' long

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 Total outer size of this+ 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