is this filter okay

well this is the filter I bought before looking into it more is it a good one smell is getting bad and I need to get rid of it all if possible will this filter do the trick running a 6" inline 400 cfm in a 3x3x6 tent http://www.ebay.com/itm/Phresh-Filter-6in-x-16in-400CFM-/400359402747?pt=LH_DefaultDomain_0&hash=item5d3747acfb

I own a Phresh and works great. No complaints.