• 3 1/4" Test tube Brush | Sigma-Aldrich Lab Tools

    https://www.sigmaaldrich.com › Life Science › Labware
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    SponsoredTest tube, L 9 in., brush size diam. x L 3/4 in. x 3 1/4 in. diameter: 3/4" available fro…

    FDA approved materials · USDA approved materials · Resistant to acids

    Brands: Sigma-Aldrich, Millipore, Whatman™, SAFC, Milli-Q, Supelco, Roche