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For researchers, scientists, and technical professionals: Your one-stop shop for the complete range of laboratory, production, and safety products and services.
Use these pumps for applications generating harsh chemical vapors. Welch Ilmvac™ DryFast™ Pumps are constructed with PTFE heads, perfluoroelastomer valves, and a PTFE coated, molded diaphragm for maximum chemical resistance.