When I bought the sponge filter I was looking for something small so that I could put it in a hospital/quarantine tank if needed.
Measurements are 76mm x 76mm x 187mm
That's exactly what I was looking for when I ordered from Drs. Foster and Smith. I bought the "mini" one, which is for up to 10 gallons. If you click the link in my last post it will take you directly to the sponge filter page on their website. Very easy and if you order a few more things, shipping is free on orders over $19, which was easy for me to do.
Ok so it'll be 10 gallons on Aqadvisor then
I'm not looking for another filter I just wanted to know what I could enter into their website for stocking etc
EDIT: Turns out the "Lustar Hydro Sponge Filter 0" is 10 gallons