POWER CORRECTION SYSTEMS, INC. - Los Angeles, CA - - Our active harmonic power correction filters reduce AC energy cost! These filters sense the critical portions of "dirty" power and inject a correcting element to clean the power. By truly canceling the harmonic component, the true fundamental becomes the only component that is reflected back to the line. A clean solution. (310)247-4848, Fax: (310)273-7719, E-mail: Info@ActiveHarmonicFilters.com