EEA provides VACCO’s unique etched disc filters. Etched disc filter is the industry standard for absolute rated filtration of gases and liquids aboard satellites and spacecraft. Each filter consists of thousands of stacked, chemically etched discs with precise flowpaths. For almost 40 years they have flown on board hundreds of satellites and spacecrafts. Precision cleaned discs are stacked and compressed in an environmentally controlled area. VACCO’s etched disc filters are assembled without welding or brazing of the element media, ensuring the cleanest filter available.