Carbon filter recommendation (6"x14")

Hey all,

I've had a 6x14" carbon filter in one of my tents (2x4x5') for 2-1/4 years now, and it's finally worn out. I need another one. I prefer to buy local, but my shop can get anything I ask for (I just pay a 15% markup). What's good on the market that will stand the test of time nowadays?

I can deal with up to 6x20" if necessary.

-spek

Spek

I just put a purchase together myself. I went with the HTG Growbrite brand with the 6 inch fan and the tall boy can filter and it took the smell out right away and really isnt that loud. I added a speed controller as well. I think I love it so far ! Got it all for a little under 200 bucks
http://www.htgsupply.com/Product-A-GrowBright-6in-Tall-Boy-Inline-Fan-&-Charcoal-Filter-Combo