Derbybud
Well-Known Member
Like Penny just said bigger of both and you usually can get a good deal on the combo. I'm running a 10" fan with a 15x24 filter and can idle it when vegging and maybe go half to 3/4 speed when things are populated. Not the cheapest setup but works really well. Until you get something take the filter back out and bang it on the concrete outside to clean it out some so it doesn't restrict it as much. Should bring your temps down both in the tent and the fan from not working so hard.