Tried a Phat filter for the first time, filled my lights with carbon, nice. Well not filled, but about an oz in both lights, had to vacuum it out. PITA.
Hopefully I'll get a few more months out of it, anything will be better then Ozone's "6 mo filter".
just an fyi, phat is now phresh.. same co' they changed names a year or so ago.. ;D
Ya, if your running your filtered air through your lights be sure to hook the filter to the fan first and let it run a good 5-10 minutes to get all the carbon dust out. I found that out the hard way too.