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  • Thumbnail Image for Octagon Spinbar® Magnetic Stir Bars

    Bel-Art - SP Scienceware

    Octagon magnetic stirring bars with integral pivot ring are the most commonly used shape. Alnico magnet encapsulated in FDA Grade, USP Class VI Teflon® PTFE low friction coating; durable and inert Interrupted profile provides greater surface area and added turbulence when compared to the smooth...

  • Thumbnail Image for Polygon Spinbar® Magnetic Stirring Bars

    Bel-Art - SP Scienceware

    These stirbars have polygon multifaceted surfaces that add turbulence relative to similar smooth size cylindrical bars. Center molded pivot ring minimizes the contact area between the bar and the vessel; reduces friction and chattering Marring of plastic containers is diminished Alnico magnet...

  • Thumbnail Image for Black Rubber Stoppers

    GSC International, Inc.

    A black rubber stopper that is useful in a number of applications. Available in a variety of sizes. Each pack is one pound. Choose from solid, 1 hole, and 2 hole stoppers.

  • Thumbnail Image for Color Octagon Spinbar® Magnetic Stir Bars

    Octagon magnetic stirring bars with integral pivot ring are the most commonly used shape. Choose from red, yellow or blue. Alnico magnet encapsulated in FDA Grade, USP Class VI Teflon® PTFE low friction coating; durable and inert Interrupted profile provides greater surface area and added...

  • Thumbnail Image for Solid Silicone Stoppers

    Free from volatiles or extractable substances which may impair cell growth; for use at temperatures from -80 to 450°F Can be steam sterilized at 15 lbs. pressure, making them suitable for culture tubes containing pathogenic materials Length: 25 mm Not recommended for use with concentrated acids,...

  • Thumbnail Image for Rubber Stoppers

    United Scientific Supplies

    Convenient assortments of various sizes of rubber stoppers in 1lb bags.

  • Thumbnail Image for Rubber Stoppers

    Plasticoid

    M35 Green Neoprene for added chemical resistance Listed mainly by trade-size, available in solid, one-hole, and two hole rubber stoppers. Uses vary widely, some are outlined below: Carboy Stoppers Crucible Holders Laboratory & Test Tube Stoppers Masking Applications Micro Stoppers Pipe Plugs Tube...

  • Thumbnail Image for Rubber Stoppers

    United Scientific Supplies

    Rubber Stoppers packaged in convenient 1lb bags. Available in solid, 1 hole, and 2 hole versions.

  • Thumbnail Image for Cork Stoppers

    GSC International, Inc.

    Quality, laboratory grade Cork Stoppers. Available in the following sizes: Size 000 Size 00 Size 0 Size 1 Size 2 Size 3 Size 4 Size 5 Size 6 Size 7 Size 8 Size 9 Size 10 Size 11 Size 12 Size 14 Size 16 Size 20 Size 22, Agglomerated Assorted: Sizes #3-7,10, 11, and 12 Assorted: Sizes #0-11

  • Thumbnail Image for One-Hole Rubber Stoppers

    Size No. 000, 00 and 0 have hole 3 mm diameter; sizes No. 1 and 2 have hole 4 mm in diameter; all other sizes have hole 5 mm in diameter.

  • Thumbnail Image for Cylindrical Stir Bars

    Globe Scientific

    Produced from PTFE For the stirring of liquids on magnetic stirrers and/or hotplate stirrers Strong alloy magnets sheathed in pure white inert PTFE Supplied in polarity aligned packs to ensure maximum coupling strength Resistant to virtually all chemical attack and temperatures up to 260°C

  • Thumbnail Image for Expansion Plugs, Black Rubber

    Tapered rubber stoppers assembled with stainless steel hardware and a wing nut, provide a mechanism to make an expandable rubber plug. This ensures seals and keeps plugs from working their way out, as well as allowing the plugs to resist added pressure. They are fully customizable from hardware...

  • Thumbnail Image for Polygon Spinbar® Magnetic Stirring Bars (without Pivot Rings)

    These stir bars have polygon multifaceted surfaces that add turbulence relative to similar smooth size cylindrical bars. Alnico magnet encapsulated in FDA Grade, USP Class VI Teflon® PTFE low friction coating; durable and inert Manufactured in a registered ISO 9001:2008 facility, as verified by...

  • Thumbnail Image for Solid Rubber Stoppers

    Standard Grade Size No. 000 is 18 mm long; sizes No. 00 to No. 13 are 25 mm long. Sizes No. 13 1/2, 14 and 15 are 35 mm, 36 mm and 39 mm respectively.

  • Thumbnail Image for Stir Bars, Octagonal

    Our stir bars feature ALNICO V magnetic cores which are one of the most powerful permanent magnet alloys available. Stir bars should not be stored in a random mass, or dropped on a hard surface especially steel. Stir bars should be stored in pairs to maintain magnetic strength.

  • Thumbnail Image for Sani-Tech® Silicone Stoppers

    Sani-Tech® ultra-pure platinum-cured silicone stoppers outperform standard neoprene and rubber stoppers in critical laboratory and process applications. These long-life silicone stoppers are fully autoclavable and sterilizable and will not crack, spallate or invoke particle migrations that can...

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