Tried multiple toilet seals and this is the only that stopped the leak. Was able to bypass any issue with the flange due to the long reach of the item.

No more wax rings! Just attach to the commode bottom, fit into hole. Great invention. No leaking possible.

Tres bon produit & facile à installer!

...got a brand spanking new toilet to go with this to avoid the messy wax seal ...it went on nicely sticking on the surface pretty good, let it sit and form a bond, but once I tested the flush water came out all over had to remove it and go back to the wax seal. useless product

Two years ago, I saw unpleasant evidence that one of our toilets on the slab portion of our home (we have two like this) had bowl seal/wax ring failure. Upon taking up the toilet and cleaning out the wax ring (just lovely), I found that the flange had been partially broken and was now rusting and failing in one spot.At the time, my mother-in-law was literally on a plane to stay with us for an extended time, and I did not want to contact a Rip-Off Rooter type plumber that gouges one under such dire circumstances, so it was off to the big box store to buy a handful of wax rings. I always had bought more than one when replacing them, because it always goes hit or miss for me setting a toilet down just right. To save my marriage, I am usually working alone.After trying single and double-stacking the most expensive wax rings, I was let down with failure after each installation. One of the problems I had was that the toilet I was trying to seat was a single unit type, not a separate base and tank. So it was especially heavy and cumbersome when trying to line up the closet screws with the holes. And because I had to rely on the wax to seal a portion of the defective flange, things had to be perfect, and I was not getting anything like that. After three tries, I decided I must try another product.I bought a pair of each competing "no wax ring" products and brought them home. The 4" Fernco is the one I tried first. It occurred to me that if the adhesive system worked as well as Fernco said, all of my problems would be solved because 1) The device was long enough to get the waste beyond the failed flange, 2) The Fernco device looked to offer assistance in knowing whether or not positioning was correct.For my part, I used a 1/2" dowel and a light hammer tapping to seat the Fernco device by tapping the lip all the way around. For my efforts, the Fernco device attached strongly to the toilet went right into place. It was actually tall enough and strong enough to hold the toilet 3" or so above the flange so that I could orient the toilet to the position of the closet bolts. Once there, it was a very satisfying feeling while pushing the toilet home into the right spot, some very good feedback as each flute of the device passed the lip of the flange and made contact/encountered resistance with the 4" ABS receptacle below.Some have said that these are no longer available at Home Depot or Lowes, and that is absolutely true in Northern California. When I purchased mine at Lowes a couple years ago, I found many had been previously unboxed and curious customers had taken off the protective wrapper and manhandled and manipulated the vital sticky surface, leaving oil and their fingerprints. I had to hunt to find a pristine one. I suppose this abuse of their product on the shelves by curious customers produced a lot of returns and the withdrawal of this product.As it happens, this past month we decided to replace the floors of the slab bathrooms, so I had two toilets to come up. The Fernco outfitted toilet required a real heft to lift away and the Fernco product stayed stuck in the flange after letting go from the toilet. It was easy to remove with large needle-nose plyers. My second toilet was also in a similar state of flange failure with a crack and rust. The toilets I have now are not original to the home (talked to the developer about this and other things), and I now know the previous owner of my home probably dropped or improperly set the toilet down on the closet screws, damaging the flange. I took pictures of the damage and sent them to a reputable plumber who does not take short-cuts. He wanted to remove the flanges, pour some new quick setting concrete around one of the toilets, replace both the flanges, and then place both the toilets on wax rings. All for $650.Gang, I happen to sometimes take short cuts.This repair can wait 2-3 years until this home becomes a rental property and I can deduct the repair expenses. I had two of these fresh from Amazon on hand and ready to go. The people at Amazon did not open the package and screw around with the Fernco product. Wam, bam, both back in place in 90 minutes and no leaks after 21 days.Ten stars if possible. Thanks Fernco!

I've got a toilet on a very poorly installed tile floor that is really uneven. I've struggled with toilet leaks, and I resorted to this as the solution because wax rings just leaked.I installed this on the same toilet I had used several wax rings with. Per the instructions I removed all the wax, and then used gasoline as a solvent to really get it all off. I then rinsed it and felt it had a good surface to attach to. I then attached the ring and installed the toilet, made sure it was perfectly level, etc. Unfortunately, the toilet started leaking again around a couple months afterward.So, I decided I just had an unlucky toilet. I went and bought a brand-new American Standard toilet and another one of these toilet seals. I thought that with a brand new toilet there wouldn't be any issue with it adhering. Just as a precaution I took some Ajax and scrubbed the area around the hole so it was clean. Then I attached the seal, turned the toilet over, and then went to install it. Then I heard the seal fall off the toilet. The seal wouldn't stick! I then did it again thinking I didn't push hard enough to seal it, and I held the toilet off the ground for about 20 seconds to see if it stayed on, and it fell off again!Without other options and probably against better judgement I decided to stay with this seal. I held it down for about 1 minute tightly to make sure the seal was decent, then I quickly moved the toilet into place. I figured once it was under pressure it would finally stay stuck. We'll see how it goes...

I had a problem with the adhesion - I cleaned the toilet horn and surroundings THOROUGHLY, using some rubbing alcohol to get rid of the wax, dried it off with papertowels really well, then plopped the Fernco on. It held for a few moments, then I could see one side drooping off. I think the problem was that I didn't let it dry long enough, giving the alcohol a chance to evaporate. SO, quick thinking at 11pm at night and knowing the kids will be trying to pee there in the early morning hours, I got out my heat gun, put it on max, blew over the area where the Fernco was to stick for about a minute (being careful not to overheat any one spot or the whole thing), THEN did a very quick "blow-over" on the adhesive part of the Fernco, and then I quickly stuck it on the toilet. Then I carefully did a few more circles with the heat gun while pushing the Fernco onto the toilet firmly, just blasting the "connection zone" for a few more seconds. I turned off the heat gun and continued pressing the Fernco firmly onto the toilet for about a minute or two. Voila, it was SOLID. I caulked around the Fernco's rim just for good measure, then had hubby help me gently glide the toilet into our submerged flange, and no leaks, it's been a success!!P.S. Whoever noted the straws on top of the flange bolts for easy centering and popping the toilet back down, AWESOME IDEA, THANK YOU! Saved us a lot of back pain and made for much easier placement of the toilet without disturbing the Fernco seal.