Hon&Guan4 Inch Adjustable Air Vent Covers 100mm Ceiling Vent Indoor Vent Covers for Walls Closeable Round Ventilation Cover for Caravans, Cooling and Ventilation Systems

Bought this along with ducting and a new extractor fan. Was simple to fit. Looks well in the ceiling and the opening is adjustable but rotating the centre

These vents are very nice, very good quality, I think they are great, I recommend them to everyone

Easy to fit, just fold the fins in and push it in. If you twist it as you put it in it grips the plasterboard a bit more but might want some dabs of silicone to hold it a bit better.Diffuses the air to help reduce noise and can adjust the opening by twisting the middle circle.I agree with others that it doesn't look pure white. I think because it's not glossy compared to most white surfaces in a bathroom.

I got this to make a spray paint booth in my back bedroom.I liked the design and the fact that the inlet area was adjustable on a single screw thread.Its well made, tough and durable.For me it didn't need any fixings as it sort of screws into the opening with the three attached locking vanes expanding out behind it securing the vent to the opening.I am using it for a booth so the wall thickness is about 12mm.I do think it will work well on thicker walls but may need screws or bonding agent like No More Nails etc.For me, it was perfect for the job, looks great and pretty decent price.

Replaced a metal vent from the same supplier with this one. This is much better. It doesn't fall out of the ceiling for a start! As others have mentioned, it's colour is off white so it does stand out against brilliant white paintwork, but this is a small price to pay for a solid product.

Easy to install and attach 100mm hoze. Grips ceiling plaster board

Replaced old outdated covers with these. Far superior and look a lot nicer. The

Looks very nice, but it is hard to install due to the lack of proper fixture to the drywall. There are some flaps that should keep it in place but in reality they are insufficient for the task. I needed to lock it in place with the exhaust pipe fitting, and it did fell off while trying to fix it the first time. Beside the difficult installation, it does the job and does look very nice.