SC20B

I ordered the 20pc and I was expecting to get 10 cups and 10 clips, but instead, I got 20 cups and 20 clips so that's okay with me! I won't need to buy more suction cups for quite some time. I needed a couple suction cups to hold air tubing but looking at the pictures, I also hoped that these would work for my Eheim Classic canister filter (model 2217) to hold the clips that attach to the intake and spray bar. The Eheim suction cups are stiff, flatten over time, and are a bit pricey at $3+ each (and that's JUST for the cup part and not the clip part). I received these cups earlier this week and was able to pull out the airline clips and stick the clips for my Ehiem intake and spray bar into these cups and FINALLY my spraybar is supported and will stay put! I really wasn't looking forward to buying the Eheim suction cups again and now I'll never have to. These cups are really soft and have good suction, maybe they will stiffen over time but I feel like it was a great deal for the price and there are so many that replacing them if I need to won't be an issue. I'm also very happy they work for my Eheim filter. A few of the cups don't look exactly round but if soaked in warm water (as suggested) then they may reshape a bit.

Great functionality works with eheim classic plumbing at a fraction of oem

These suction cups work well and did initially turn white as another review had described. I was very happy to discover that the suction cups did fully return to black after a couple weeks and have been stable since. I have been using them for my air lines in a fresh water 120 gallon tank for a few months now and have not had any issues. Recommended and tank tested!

Great job

Bought a *brand* new acrylic fish tank, layed out meticulously ran air lines, and immaculate routing of multiple air stones making one of the cleanest setups ive done to date. Did a dry run before adding water and left a few cups stuck on while i went to sleep. Was experimenting with different placements of the cups so i had some higher and some lower and just seeing what looked and worked the best. Left them there and this was a mistake. Over night, something terrible happened. I took the cups off the next morning to proceed with the project. Saw there was what looked like water rings like a condensated glass cup would leave on a wood table, but it could not wipe off. Running my finger over it you can feel its been frosted. Etched by some weird chemical reaction that ate into the aquarium walls and Permanently etched it in all places the cups made contact. VERY DISAPPOINTED Although i must give credit where credit is due. They cups stuck nice and tight. One did fall off at some point that evening, but still stayed long enough to etch the walls. They were soft and supple, but apparently the oily coating on the cups is an acrylic destroyer and will remove any clarity in all places the cups are touching. Visually ruined a brand new tank. And thats a legit bummer. Didnt see that coming. Plastic tank? AVOID THESE CUPS!!! Glass? these should do a great job.

My aerator hose was moving too much and u had a lot just hanging outside the tank. I wasn't a fan of all that movement so i bought these. I've seen reviews of a coating coming off in the water, but it has yet to happen to me. It's only been a few days so maybe I'll leave an edit it does happen. Otherwise, it does what it needed to do and i even started using the extras to stabilize some stuff that were just loosely hanging. Update: I got that slimy coating coming from it also. I placed a few in a cup of water on the same day i added one to my fish tank. The ones in the cup are fine so I'm guessing whatsoever is on the suction cups is reacting to something in the fish tank water

Like the suction cups

Mostly sticks to stuff. Doesn't work great on plastic.

Pues en buen precio y buena succión, no se puede decir mucho de ventosas. Vale la pena por el precio tenerlas a la mano.

They are amazing. Good price, good suctioning, well built. I used then for my aquarium air line and was also able to change the suction cups of my eheim heater mount. Recommend them to everyone, as i have tried a lot.

So far so good it's only been a couple of weeks but they haven't budge at all pretty strong hold

Suction power really good. Had tough time getting it off.

Work great