Closures for Drosophila vials and bottles allow for breathability for the Drosophila while helping to prevent mite contamination. There are a variety of different options to suit the needs of every lab. These pharmaceutical grade rope coils can be pulled or cut apart in any length to effectively plug any size vial or bottle. Coils conform to USP (current edition) Purified Rayon and Purified Cotton, respectively.
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