HipandaFilter Foam Sponges, Bio Sponge Filter Media Pad, Cut-to-Size Foam for Aquarium Fish Tank (7.5" x 4.7" x 2.75")

It arrived flat, in a vacuum-locked package, very surprising! It expanded perfectly in a couple of days just by sitting on my counter. I'm using it around the pump in my outdoor water fountain, to keep the bigger leaves and such away from the pump. I bought the 7.5" x 4.7" x 2.75" and that is exactly what I received. I cut it to fit my pump with an x-acto knife and was easy enough to cut through the thickness. I will be ordering another one as I cut this one incorrectly (I should've measured twice and cut once), but it is exactly what I needed. I installed a simple $10 float and water supply hose to the fountain, so that I don't have to keep refilling it. I put the extra piece around the float to help keep debris away from it.

Bought this to use to fabricate a new foam air filter for my Devilbiss 6.5 HP air compressor. Cut to size and installed just fine with sharp box cutter. Same exact material as the old filter which was beginning to break down and decompose into pieces... Works great... Not what it was intended for but its the same stuff and works just fine. I recommend...

When I first recv'd this item, I was set back when I unwrapped it. I went to my computer to double check, 'did I order the wrong thing'? Nope, it was right. Then I read the included instructions. I rarely read any instructions, its just a sponge. When I did the recomended 'set-up' and added the sponge to the heated water, It expanded like Chinese noodles hitting hot oil. Now it looks like the picture. Being vacuum packed threw me off.

it works as advertised.

Easy to cut with scissors or exacto knife. I have a very small filter so I won't need to buy a new one for a very long time! Very worth the money.

I bought this and cut it into a bunch of pieces to fit my cat's water fountain. They want like $15 for a pack of 2 with four of the cloth filters for the branded ones. Be smart and instead get this or a similar product, cut it up, and have sponge filters for life and then buy the generic cloth ones for less than a buck each on Amazon. Spend the money you saved on extra cat treats.

Pricey sponge material.

Fits our 34 gal aquarium pump very well.