You need a minimum of 11, get 20. Researchchemist . com has them in 10 packs for $35. Get 2 of those

If you plan on making more batches in the future, then I higher recommend bottle top filtration. There is a sticky in this forum about it. I went with the Nalgene filters from Daigger and the media bottles from researchsupply.net. I have had some difficulty getting 400mL through them, but damn they make things easy. In the long run, they are actually a better value for larger batches.

okay so each bottle top filter is good for about 400mL? so this 70 dollars for a 12 pack is all i will need for a while.. only use about 3 for this process in my original post

also what makes this one reusable? http://www.daigger.com/catalog/prod...es&prodId=8401A
how could you wash out all the crap so it could still filter and not be too clogged?

Supposed to be good for 500mL, but I haven't had much luck with that...yet.

You also need a vacuum (brake bleeder avaialble at auto stores for ~$45) and a glass media bottle. You can use the glass media bottle over and over. I've heard the brake bleeder doesn't last forever, but I'm not sure how long it'll last. I kind of put mine through a lot last time when I was trying to get my filter to filter 500mL.

Higher up front costs, but much easier. Start the filtering and get a beer.

But many guys use syringe filters and complain instead. Each method has its merits.