14" x 14" [Duct Opening] Ceiling Supply Diffuser Vent Cover – Corner Direction with Full Aluminum Frame, Back Blades & Opposing Blade Lever Damper [Outer Size: 17" x 17"] 14" Round Duct Pipe thanks to its slotted lock

thanks to its slotted lock

this HVAC vent duct cover ensures durability and reliability

as well as potential damage from wildlife

this access door is built to last and never rust

14" x 14" [Duct Opening] Ceiling Supply Diffuser Vent Cover – Corner Direction with Full Aluminum Frame, Back Blades & Opposing Blade Lever Damper [Outer Size: 17" x 17"] 14" Round Duct Pipe thanks to its slotted lock+ 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