Filtronetics has Bandpass Filters, Clock Oscillators, Quartz Crystals and RF SAW Filters. Highest quality Custom LC FiltersMicrowave FiltersCeramic FiltersRF SAW FiltersCrystal FiltersBandpass FiltersLow Pass FiltersHigh Pass FiltersClock OscillatorsQuartz Crystals. A valued supplier, designer and manufacturer of electronic frequency products Filtronetics based in Kansas City Missouri.