10" x 10" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 1-Way Airflow with Full Aluminum Frame, Back Blades & Opposing Blade Lever Damper [Outer Size: 13" x 13"] 16" Diameter actual front end outer dimensions

actual front end outer dimensions are approximately 30 5/8" width X 18 5/8" height

We always strive to choose high-quality materials and provide the most intimate service

Designed with two mounting base options—solid and ring—it offers flexible installation

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

10" x 10" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 1-Way Airflow with Full Aluminum Frame, Back Blades & Opposing Blade Lever Damper [Outer Size: 13" x 13"] 16" Diameter 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