Foxx Life Sciences' Autofil PP bottle-top filters for solvent filtration are a revolutionary new way to purify solvents for analytical applications to obtain sterilized or purified extracts. Foxx has developed the world's first single piece polypropylene funnel, designed to withstand harsh solvents that would normally degrade traditional bottle-top filter assemblies. All active components are grade which makes Autofil PP perfect for the extraction of compounds used in the food and drug industry.