Does not fit the Shark vacuums that I own, ...
585627
Does not fit the Shark vacuums that I own, as this is a fairly popular vacuum brand, that's disappointing as the product is advertised to fit major vacuum brands.
3645518
These mop heads fit my steam mop.  However it is not usable.  The cover is made out of a different material, and when it gets wet the mop sticks to the surface making it very hard to move.  I will be purchasing genuine shark replacement mop heads.
43177
Ordered filters for the Shark 650 and received filters for the 550.
Didn't fit so I called Shark and they sent me the correct ones.
323140
Yep, ordered the wrong size as I wasn't paying attention when I order this one first.  However, I lucked out as my husband says, as it actually fit another one of our Bissell vacuums.  So now we have two vacuums that have new brushes.  Aren't I lucky.
4776842
It did not work properly with the shark vacuum. It is the correct battery but it did not fit tightly on the charger.
4433655
The attachment does not fit my vacuum. It could be great with another vacuum.
2854583
Product claims to fit my model vacuum, but did not work right.  Hose is too tight around shaft it slides into, and is a bit long, so it it hard to seat and vacuum handle.  DO NOT BUY THIS PRODUCT
562350
I bought this to work with a Bissell Powerforce Helix vacuum cleaner but it does not fit. The normal Bissell tools are designed to fit on the inside of the hose attachment, but this tool from Crucial is meant to fit around the outside of the hose. When deciding whether to buy this product you should measure from the outside of the hose.

Fortunately, I do have a shop-vac that fit and was able to use the crevice tool after all. I was able to loosen the collected dirt with the help of a dryer lint brush and suck it out with the crevice tool. Giving the tool three stars because the product description is too broad and needs info about properly measuring your vacuum.
1129663
Couldnt afford the shipping from the official shark website for filters so I found them on amazon just a generic brand but it fits and works great with my vacuum cleaner. Im assuming you change these once a year so when they get dirty ill be reordering them from amazon.
1420428
Brush roll is not an exact fit, and the belt breaks every time I use it. The screws that remove the base are deep-seated, which I knew from having other Oreck vacuums, so I have to keep a long Phillips-head screwdriver handy with the 3 remaining belts. I'll likely clean and replace the original brushroll-something just isn't right about the fit.
1741228
i bought a vacuum on amazon.  this brush was a suggested item.  unfortunately, it does not fit the vacuum.  the vacuum has a 35 mm hose.  this was not specified.
3119372
I bought the vacuum they're supposed to go with and they didn't fit properly. I had to get creative in how I hold them. Some I can't make fit at all so some of these are utterly useless to me.
2822157
The rollers DO NOT fit the Roomba 960.  These are made of very thin rubber and too much slack and will not work in this vacuum.  I put the roller wheels in and started it up and it made a horrible noise and kept giving error messages.  I tried everything to get it to work. The other parts fit just fine, but needed all the parts to work. I returned this item instantly.  Pay the extra bucks and get the real thing.
1644194
This filter is not for the vacuum model i bought. I don't know why and who recomended this filter. I could not find the replacement filter on amazon for electrolux EL2081A
4562672
The premise of this product is great, however, the attachment doesn't fit my vacuum hose. I tried it on two separate vacuums.
1723841
I wanted to write specifically because the description on Amazon's web site indicated that these little tools wouldn't fit on Shark vacuum cleaners. The set I received is designed FOR the Shark Rocket and the tool bag it came with has the name Rocket emblazoned on it. The adapter also makes it usable for the little hand held vacuum I bought it for so I win all around by getting tools I can use with all of my vacuum cleaners - since I am a big fan of Shark vacuums. It's not clear but the tools fit on the rubber hose only so I cut a section of the hose to use just in fastening the tool to the vacuum hose adapters. They are of a good quality plastic and the selection makes them very useful for cleaning keyboards and such.
4306448
Too small for the Shark S3101CO. These pads are about 1" too long and 1" too wide. The correct pads are pn P141GHF on the Sharkclean_dot_com website but are $7.95 each.