I'd like to get at some debris in one of my inside heating ducts.
The debris is about 18" in from a 4" round wall vent outlet. My problem is the vent has an attached circular louvered rotating grill ring that conceals the vent mounting screws.
How can I remove the grill ring to get access to the duct? It looks to be attached to the vent housing itself via some type of attachment mechanism in the rear center of the grill ring.
I'm afraid to try force for fear of breaking something.
Anyone know how to remove that louvered grill