By Keith Roysdon DELAWARE COUNTY, Ind. – A leading Italy-based manufacturer of industrial filters has chosen Delaware County to expand its footprint, grow its business and locate its North American headquarters. Filtrec, which has had a presence in Delaware County through inventory in a storage building in the town of Daleville, recently purchased an industrial building just south of Muncie and will be moving into it during June. Filtrec will move its inventory of thousands of filters into the former.