Thought I'd share my experience filtering beer with the cheapest filter I could find.
Got the filter at wine kits with a pack of #2 filters. The filter was cheap enough that if it didn't work, I would just throw it out.
The filter works by pressurizing the carboy with a dinky little pump which forces beer up a siphon hose and through the filter.
First attempt was with a stout (yeah yeah, why would you filter stout) to see how the filter performed. After over an hour of waiting, I realized a back pressure of 2psi was much too little to run beer through the filter in a timely fashion.
So last night was my second attempt, only this time I put ball lock liquid fittings on either end of the filter system, and used CO2 back pressure to transfer from one keg to another.
Well, I filtered 10GAL with two filters in about 15 minutes. Not bad.
I then filled a 1L PET bottle, chilled it, and forced carbed it with a pressure cap.
The beer looks great, and tastes great too. The other 2GAL of this 12 GAL batch went into a third keg, unfiltered, for comparison later on.
Here are a few pics:
[attachment=1:2yfbzlwg]filter.JPG[/attachment:2yfbzlwg]
[attachment=0:2yfbzlwg]Filtered Beer.JPG[/attachment:2yfbzlwg]