Premier Filters offers high-quality EMI filters compatible with wide voltage, capacitance ranges, and reliable performance in extreme environments. We are global designer and manufacturer of AC/DC Power Line EMI Filters, backed by 70+ years of combined expertise in quality and performance. Based in Southern California, we manufacture in the USA to meet the rigorous demands of global industries. Our world-class delivery and reliability are powered by in-house test labs and quick-turn production f