Hon&Guan Soffit Vents 4 Inch, Round Exhaust Air Vent Cover with Built-in Fly Screen for Bathroom Kithchen Office Home, White

Nice product. Fit perfect. No tools needed.

Worked like a charm. SImple to install and snapped in. The only adjustment was the insect screen was loose and had to get that in tight. Make sure you drill a 4.25" hole

Easy installation and helps draw cooler air in to help keep the back of my built in refrigerator cool. Nice strong plastic used.

I used this for a bath exhaust fan that’s mounted in the attic. Nice discreet look and worked well.

Made for mounting on surface that is no thicker than drywall. I used it in 7.5" concrete wall so I made a 4 inch hole and lined it with 4" PVC pipe. Vent wings allow it to stay in place and caulking around edges secured it to weather tightness. Airflow was adequate. Not installed long enough to speak on how well it stands up to the elements. Replacing will be a quick task though. Material seems robust enough to last for several years.

After the old dryer vent cover literally fell off the house, I searched for a simple replacement. Most other covers required drilling holes in the brick wall to attach them, which was a no-go as far as I was concerned. Luckily I discovered this convenient little vent cover where installation involved simply lining it up with the hole/pipe and pushing it into place. The fit is snug and so far it hasn't moved or needed to be readjusted. We moved to the southeastern part of the US from the north, so I'm always fearful that snakes or other critters will somehow get in. Fortunately this will definitely keep them out - and as an added bonus, was extremely simple and fast to install with no drilling, tools, or screws needed!

Fit in a 4.25 inch hole, stays in place, works as described. I'd buy again

Awesome! Great fit and I like the side tabs that keep the vent in place. Still use a little caulk to keep the vent on the black housing because it will fall off. For the money it’s a solid product.