Supertech.
Its the cheapest I can find around here. 2500 mile clean and 3000 mile rinse phases you dont really need much.
Although if you need a filter the deal at AutoZone where you get 5 quarts and a filter for $10 is pretty good too. It may be a Fram filter, but I would bet that it held up to the 1500 mile filter change period during the rinse phase just fine.