10" x 10" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 3-Way Airflow with Full Aluminum Frame, Back Blades & Opposing Blade Lever Damper [Outer Size: 13" x 13"] w8h8 actual front end outer dimensions

actual front end outer dimensions are 19" Width X 19" Height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 26" x 30" OR 30" x 26" duct opening (measured at the opening)

+ Product Details Size – Duct end cap is 22" X 6" | 26-gauge galvanized steel end cap

Actual Filter Size – 11 3/4"w x 9 3/4" x 1"

Actual Filter Size – 27 3/4"w x 13 3/4" x 1"

10" x 10" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 3-Way Airflow with Full Aluminum Frame, Back Blades & Opposing Blade Lever Damper [Outer Size: 13" x 13"] w8h8 actual front end outer dimensions+ 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