Our Fluoropore™ membrane is a hydrophobic, polytetrafluoroethylene (PTFE) polymer membrane bonded to a high density polyethylene support to improve the handling characteristics of the filter for normal applications. Fluoropore™ membranes provide broad chemical compatibility, high flow rates and consistency. (Please note that catalogue numbers containing "FHUP" are unlaminated, or produced without a backing.)Our Omnipore™ membrane is a hydrophilic PTFE membrane that is compatible with virually all solvents, acids, and alkaline solutions.Features & Benefits: - Biologically and chemically inert - High porosity yields high flow rates - Hydrophobic and hydrophilic PTFE varieties available for filtration of aqueous and organic-based samples Applications: - Fluoropore™ Membrane: Clarifying Acids, Bases and Solvents; Air Monitoring; Filtering and Venting Gases; UV Spectroscopy - Omnipore™ Membrane: Filtration of Aqueous Solutions, Clarifying Acids and Alkaline Solution