I.W. Tremont is a USA-based filtration products manufacturer specializing in glass microfiber and cellulose media. The company also supplies extraction thimbles, syringe filters, membranes, and technical specialty materials. Our unique product lines include high purity porous materials used in filtration, wicking, and conveyance applications of powders and liquids. ISO9001:2015 registered with TUV Rheinland and GMP compliant, I.W. Tremont provides the highest level of customer service in the industry and confidentiality is always assured.