Several fast loop Balston® sample filters are now available offering the benefit of real time sampling with high-efficiency filtration. Filters' flow pattern continuously flushes cartridge carrying contaminates back out to process stream, thus maximizing filter cartridge life. Cartridges are offered in a wide range of efficiencies from 100 micron to 0.01 micron, several of which are cleanable and reusable. Parker Hannifin Corp./ Seal Group 14300 Alton Pkwy. Irvine, CA, 92618