8" x 8" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 3-Way Airflow with Full Aluminum Frame, Back Blades & Opposing Blade Lever Damper [Outer Size: 11" x 11"] Condensate Pump Accessories This access door stands out

This access door stands out as one of our strongest and most resilient offerings

actual front end outer dimensions are approximately 21" width X 21" height

+ Product Details Size - 36"w X 24"h is the size for the duct opening measurement only

High Quality Aluminum The premium durable Aluminum will Never Rust and it will never wear through leaving the material

8" x 8" [Duct Opening] Ceiling Supply Diffuser Vent Cover – 3-Way Airflow with Full Aluminum Frame, Back Blades & Opposing Blade Lever Damper [Outer Size: 11" x 11"] Condensate Pump Accessories This access door stands out+ 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