Powerful Magnetic Air Vent Extender for Floor Under Furniture - Sturdy & Durable - Super Strong Neodymium Magnets (Upgraded Design) - Adjustable from 13” to 38” (Longest Available) | Patent Pending

Yes, it costs more than you want to pay.Yes, it does exactly what you need, because all of the others are just too small.this fits 14" wide vents just as perfectly as you hope it does, and yes, the magnets are as strong as you want them to be.

Great product. YES, much more expensive than the other options on Amazon, but..... It's made of strong acrylic so NO melting plastic like the reviews from other cheaper venders. We needed the full 13" width and the full 38" depth for our oversized loveseat. Magnets are strong and instructions are simple to follow.Super happy.UPDATE: This is the only thing available that is wide enough and sturdy enough to survive the cold A/C air flow and the hotter, winter heated air flow. The first one I purchased is still going strong and the second is now in the back office/bedroom and helps circulate the air from under a desk out into the rest of the room.Still over priced IMO, but VERY reliable. You get what you pay for!

I'm on the fence over the price seemed a little high but it is a quality product that should last. I was torn between paying the price or trying a cheaper option. I would go with this one. You get what you pay for. You will want to tape it to the floor to keep it from moving if it gets kicked.

This item is as described, it does a good job of diverting the air flow without any assembly. It expands nicely to move air flow from under furniture. The only thing that keeps it from being rated 5 stars is the rather inefficient power of the magnets. That said, my particular circumstance didn’t require much magnetic force.It does what it says it will do.

We are using this vent extender under a narrow bureau, and it fits perfectly. The length and width are perfect for our needs, and the magnets are strong and hold tightly to the metal vent. The heat now goes out into the room instead of going up into the bureau as it was before.

Excellent solution! This device is very well made and quite easy to install. The magnets to affix to the vent grill are strong and the assembly instructions are clear. It works great and diverts air flow very well. Highly recommended.

I am disappointed that when the parts are slid together that the fit is not snug. They come apart very easily and I ended up using heavy duty tape to hold together. I like the heavy duty plastic and the magnets are sturdy and hold the cover onto the air duct.

This gadget is wonderful. It is the longest-extending product like this available on Amazon so I bought it because I wanted one to go to the entire width of my son's full size bed. Of course, there is no product will go that long that I found, but I bought this anyway it was the longest. It's perfect! I wondered if I would have to buy another one and merge the two together, but completely unnecessary. I extended it as long as it goes according to the package directions, and it is blowing the air easily the rest of the way under my son's bed. Nice strong air flow, no issues at all. Also, my son occasionally crawls under his bed and not had any problems with this getting knocked about or coming apart. I couldn't be happier with this.