Dundas Jafine ADSPZW Adjustable Shatterproof Universal Air Deflector, Clear, 8-in to 14-in

Sometimes the cats knock it off the register, but it’s easy to fit back in. It doesn’t get knocked off by robot vacuum. 5 stars as it works as described and expected.

Works well to redirect the heat flow into the room & away from my plants. It's length is adjustable & I was able to fit it under the rim of the vent cover to keep it in place.

Perfect. Good and strong. Little costly

Flimsy construction. Made of brittle, flimsey platic. Performance issues: to enlarge the vent/hood you slide two pieces apart, the guide ridges that the 2 pieces slide inside are minimal in depth, and as a result they hold the sliding sections very well. Also, because this is a one-size-fits-all item, when it's adjusted/lengthened to fit a longer vent, the 2 pieces are not actually long enough to stay connected. It really does not accomodate a longer, or a wider, vent properly. Again having to do with this being a one-size-fits-all item, the dimension of the curved section of the vent/hood is not large enough to actually capture all the warm air and redirect it forward, the hood only covers 2/3 of the vent depth allowing a significant amount of warm air to escape redirection. And finally, the design uses turned under feet, not magnets to secure it under the floor vent rim. Because there are no magnets to hold it in place, and because this item is extended to its max capacity due to the length of my floor vent, merely touching it causes the 2 pieces to collapse. May be alright for 3x10 vents, it's not satisfactory for anything larger and, the lack of anchoring securely in place is an issue.

Very easy to attach. Really keeps down the blast of cold air from the air conditioning.