... ) Reusable,washable 3) Acid-resistant,alkalifast 4) Flexible 10ppi Filter Net detail:1)Material: PU (polyurethane)2)Aperture: from 10ppi to ... filte function, reusable,washable, acid-resistant,alkalifast, Flexible,good tensile7)Use: filter dust, air, liquid, equipment filter etc. 10ppi Filter ...