Bottle Closures
Bottle closures allow for safe transfer of liquid media by securely closing jars or roller bottles. Various liners offer additional solvent resistance while permeable styles successfully filter during gas exchange and media sterilization procedures. Protect samples even under harsh freeze-drying lyophilization or autoclaving conditions with temperature tolerant caps. Compression caps for microscale reaction containers support stable observations. Disposable and reusable threaded caps are offered in many colors with or without septas.
Duran Screw Caps and Pouring Rings, Wheaton
Supplier: DWK Life Sciences (KIMBLE)
Blue polypropylene closures are linerless and fully autoclavable
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Green Thermoset Screw Caps, F217 and PTFE Liner, Qorpak®
Supplier: QORPAK
Green Thermoset Plastic Caps with F217 and PTFE liners are known for providing the widest range of chemical compatibility.
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Polyvinyl Bakelite Jar Caps
Supplier: EMPIRE/EMCO
Polyvinyl lined for maximum resistance.
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Polypropylene Screw Cap, Wheaton
Supplier: DWK LIFE SCIENCES S. DE R.L. DE MX
Unlined for use with WHEATON Glass Diagnostic Bottles.
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Screw Caps for Specimen Jars
Supplier: EMPIRE/EMCO
These steel caps fit flint glass, screw cap wide mouth specimen jars. They are finished in black enamel and have a chemically resistant inner liner.
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Black Phenolic Screw Caps, Polyethylene Liner, Qorpak®
Supplier: QORPAK
Caps with solid PE liners offer good chemical resistance and a low moisture vapor transmission rate and are for great polish remover and higher concentration acids & alkalis
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White Metal Jar Caps
Supplier: EMPIRE/EMCO
Recommended for Polystyrene Storage Jars.
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Black Phenolic Screw Caps, Rubber Liner, Qorpak®
Supplier: QORPAK
Black phenolic caps with rubber liners are autoclavable
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White Metal Screw Caps, Pulp/Polyethylene Liner, Qorpak®
Supplier: QORPAK
Pulp/Polyethylene lined metal caps are a great general-purpose closure.
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Black Phenolic Screw Caps, PolyCone Liner, Qorpak®
Supplier: QORPAK
PolyCone lined caps form an exceptionally tight seal and offer a good chemical barrier
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White Metal Screw Caps, Plastisol Liner, Qorpak®
Supplier: QORPAK
White metal caps are impact-resistant and exhibit the widest range of temperature tolerances
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