Customer Reviews

MVCX512 Magnetic Vent Covers (5" X 12", 3-pk)

5 star:		(3)
4 star:		(2)
3 star:		(4)
2 star:		(2)
1 star:		(11)

 

 

This product does not have strong enough magnetic force to hold the weight of the vent cover against gravity. I have sheet steel A/C vents. The covers barely hold on to the wall vents and don't hold at all to the ceiling vents. When the A/C fan came on, the wall cover fell to the floor. I compared the magnetic strength of the vent covers with photo magnets from Shutterfly by applying the vent cover to the refrigerator. They both held with the same apparent strength. I tried to attach the photo magnets to the wall vent. It held, but not as strongly as to the refrigerator. The problem seems to be the amount of ferrous material in the vent cover and the shape of the cover - mine were stamped by machine and the built-in air deflectors in the vent are raised slightly from the edges of the vent where they attach to the wall/ceiling. There isn't enough flat surface for the magnetic covers to grip. MVCX512 Magnetic Vent Covers (5" X 12", 3-pk)

I read the reviews. Knew I was taking a chance on these things. But they're pretty cheap so took the plunge, knowing I had a back-up plan. Sure enough, these covers won't stay up on a ceiling vent, even with no air flow. So I resorted to back up, which is button magnets on top of the covers. Don't laugh. These are not your mother's refrigerator button magnets. They look unobtrusive but are NOT for sissies. I got some neodymium button magnets (Part No. ZD3) from K&J Magnetics on line ([...]). Pack of 10 for 5 bucks. They are the strongest magnets in the world and it's even hard to pull one from a stack of them. I use six per cover because I like three on the long side but 4 total would likely do. They look fine and make the vent covers do the job which at they fail so miserably on their own.

The MVCX512 Magnetic Vent Covers are a bit of a joke. The magnetic force is so weak that not only will they not stay put when the air is blowing, they tend to curl and fall off even when put on any old flat piece of metal. The only reason I'm giving them 2 stars is that they are the right size and shape and sturdy enough to act as a vent cover when taped in place with duct tape.

These magnetic vent covers do the job, but they need more magnet to them, they don't stay in place.Other than that they are just fine.

Works fine on floor vents. must be trimmed in carpeted areas. So far, so good.

The product works well but in the picture it appears to be black/dark brown. When I received it they were white. The company claims they do not come in the darker color. The white did not work for me. They refunded me 100% of the money.

If you work in an office building, I am sure you can each relate to the vagaries in temperature as you move from zone to zone of the office building/floor. Unfortunately, I share my part of the floor with several people that prefer a temperature usually reserved for storing fine red wines. I was looking for a discrete way to cover the numerous vents in my office without drawing attention to the fix; the last thing I want is for a colleague to come into my office to inquire why I have duct tape hanging covering the vents, or why I have large refrigerator magnets suspended from the ceiling.

The MVCX512 does just the trick. They are large (about 5" x 10") white colored magnets. I would rate them higher, but the magnetic backing is not very strong. I have to position the magnets so all airflow is not restricted - just redirected - otherwise I am certain the obstruction created by the magnet would cause them (the magnet) to dislodge. These may not be the perfect application for everyone's use, but may just work for you - or your wine cellar of an office.

Don't know what else to say. I tried it on floor, ceiling, and wall vents and the magnets are so weak they even float off the floor units. Don't wast your time.

I installed these on some ceiling vents today. The magnetic material is so weak it will barely hold up it's own weight. I kind of expected them to stick pretty well, but not the case. I have a single blower fan supplying all the vents in my house. I was attempting to block 6 metal vents which have only the standard factory paint. What I found was 3 of 6 fell off by morning.

The good news is I returned them to Amazon and got a full refund. And because I ordered via Amazon Prime they even paid the return shipping. Gotta love Amazon Prime.

I bought this item despite the other reviews--thinking weak magnets might be annoying but shouldn't be a showstopper. In fact, the magnets are so weak you wouldn't even know they are magnets--except for the fact that you ordered magnets.

Go get yourself a roll of duct tape and tape over your unused vents. Far more effective (and cost-effective) than these useless "magnets."