Hipanda Filter Foam Sponges, Bio Sponge Filter Media Pad, Cut-to-Size Foam for Aquarium Fish Tank (7.5" x 4.7" x 2.75" (2pcs))

I love these. I bought them to set my aquarium air pumps on to quiet the vibration. Worked great

Big enough to let a good water flow, and does a great job at keeping healthy bacteria in tank. Would recommend though if you are having cloudy water issue add a finner floss in front, keeps my water cristal clean

This is a value rich alternative to prepackaged OEM replacements. The only negative is that you have to cut to size using scissors. This material is so thick that it’s difficult to snip with great accuracy.

Perfect for outdoor fountain

So I definitely didn't realize how big these were going to be. Holy moly! I'm very happy with this purchase. 😂

Love it.Cheap and amazing

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Work as needed. Easy to cut/trim. My return was not properly counted and I was charged for one that I sent back.