Maurice Franklin 4-inch Round Plastic Vent - Black - Set of 4 Review

These air vents give our freshly painted curtain rods a nice smooth look. They are a major improvement on the large 1970's rectangular metal openings that once occupied our cornices. They are easy to install and can be pulled out for adjustment. However, since they are small, we will install them all over the eaves.

I installed these air vents in a closet where I needed some light convection to keep my cable modem and small UPS cool while out of sight. It's getting hot in the closet. I drilled a 4 inch hole and they fit perfectly and are tight. Once you push them in, they won't pop out again unless you get to the ground and push them down. Black plastic mostly disappears in my room. I don't even notice her.

Works great. I used it to bleed my air conditioner in a caravan. The size was correct and the product was of high quality. The depth is only about 1/2 inch and is held in place by ribs along the flange. This is not a problem when used in wood, but fiberglass can present some challenges. because the force required can cause the fiberglass to splinter if the hole size is not the right size. Clean and professional processing.