Guess you've fucked off by now since zero replies.
But if not. You don't need an intake fan for a small tent. You just want a 4" or 5" RKV or ruck. If your on a budget then buy second hand off ebay. There are loads. Don't buy something cheap new that's going to be shit and noisey and rattle if you can buy a good ruck fan seconds hand. A good one will last a decade.
The filters ok, not top quality but if you match the fan cfm to the filters then it will be all good.