I have seen a few filter issues on e85 over the years, paper filters getting completely blocked within a few weeks, filters collapsing, spark plugs going red and only attributable to the filter... Why wouldn't you just upgrade to a 40 micron stainless version and know it will be fine long term? (100 micron on the inlet may be better if you must run something.)
Personally, I wouldn't be running a filter before any pump, (other than the recommended sock filter) as it can cause cavitation inside the pump. They generally don't like restrictions on the inlet side.