I should have bought more of these!
I love that you can adjust it and spare parts.
Using it in a sponge filter, works great...
Amazing stone, this is a repurchase for me for a new tank set up, however, I forgot to order a pump for the stone. Oops. I love the USB pump on the site but just forgot to put one in my cart. #dontforgetthepump
Over $ 49.00
Under $ 49
$ 4.99 Flat Rate