Profile: Critical Process Filtration, Inc. is a manufacturer and supplier of process filtration products & services to industries in which filtration is considered to be a critical part of the manufacturing process. Our line of products include filtration cartridges, membrane filters, liquid filters, capsule & depth filters. Our products are made of industry standard materials such as polypropylene, nylon, fiberglass, micro fiberglass, polyethersulfone and teflon.