Plugs and caps of various material compositions, sizes, colors, and closure types to fit a wide range of tube types; may be sterile, non-sterile, and/or autoclavable; may possess leak-preventing features including O-rings and cap liners.
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Protect your test tube samples from contamination and prevent evaporation. These Stainless Steel Cylindrical Closures are reusable and perfect for various size test tubes. Available in lanced or unlanced formats.
Colored screw cap with o-ring fits empty 2 mL microfuge tubes. Green Caps for Lysing Matrix Tubes are used in conjunction for isolation of total RNA from plants and animals.
These Flange Plug Caps have two flexible flanges to ensure a leakproof seal. They will fit into test tubes and also in round cuvettes and centrifuge tubes.