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  • Black Phenolic Cap With PE Poly-Seal Liner

    Wheaton

    Stress crack resistant Superior torque retention Excellent sealing characteristics Manufactured from LDPE. The unique cone design provides a wedge type seal that not only seals across the top but also across the inside diameter.

  • GL 45 Media Storage Bottle Caps

    Kimble

    Caps are designed to fit GL 45 threaded ware. Autoclavable Solid top polypropylene Cap colors available in blue, white, orange, gray, green, or pink High-temperature version with red cap available

  • Polyethylene Caps

    Evergreen Scientific

    Three designs Precision-molded Polyethylene (PE) stopper caps are available for every size (except 15.5 x 50 mm) of Evergreen test tube. Choose from either standard caps or the flattop style. Caps for 12 mm tubes are available in six colors. Over-fitting caps for use with sterile…

  • Corning Media Storage Caps

    Corning

    Caps fit Corning media bottles, Erlenmeyer flasks and spinner flasks with standard GL threads. Standard Plug Seal Caps are autoclavable and use a linerless plug seal design for efficient sealing. Pouring Rings fit on the lips of bottles for drip-free pouring. Autoclavable Vented Caps have a 0.22…

  • Black Phenolic Polyseal™ Cone Lined Caps

    Qorpak

    Black Phenolic Polyseal™ Cone Lined Caps form an exceptionally tight seal and offer a good chemical barrier. This liner molds itself around the sealing areas of the finish as the cap is screwed on, virtually eliminating leakage, evaporation, contamination, binding, and backing off.

  • Target DP 9mm Vial Closures

    National Scientific

    National Target DP 9mm closures are designed to help chromatographers achieve more reliable and efficient sample analysis. Designed to accommodate nearly all chromatography autosamplers fitted for 12 x 32cm vial trays, the C5000 series closure effectively eliminates septa push-through and…

  • Target DP* 9 mm Convenience Kit

    National Scientific

    Features of Target DP 9mm Vial Closures (included in kits): Septa push through nearly eliminated due to improved interior geometry without the need for bonding Increased sealing capability AVCS provides the freedom to select the best septum for your instrument and applications Cost…

  • Stainless Steel Closures for Tubes

    Bellco Glass

    Excellent for Culture Tube and Flask Closures. 305 Stainless Steel, Non-Corroding. Lanced fingers grip firmly after repeated autoclaving.

  • Black Phenolic Caps

    Kimble

    Screw threads Choice of six liners

  • 10mm Snap Caps

    Globe Scientific

    These colorful snap-on closures are an effective way to recap blood drawing tubes, glass test tubes and plastic culture tubes. They are precision molded from low-density polyethylene (LDPE) and maintain a tight seal during centrifugation, agitation and refrigeration procedures. They are available…

  • Threaded Closures for Dram Vials

    J.G. Finneran

    F217 is a triple layer liner that consists of a foamed polyethylene core between two layers of virgin low-density polyethylene. The liner is faced with another layer of PTFE (polytetrafluoroethylene). The lined polypropylene closures have excellent chemical resistance, a low moisture transmission…

  • 12/13mm Snap Cap for Tubes

    Globe Scientific

    Fits most 13mm glass tubes Fits most 13mm glass evacuated blood collection tubes Fits most 12mm plastic culture tubes Thumb tab for easy removal Polyethylene (LDPE) 1000 caps per sealed bag Assorted colors available These colorful snap on closures are an effective way to recap 13mm…

  • Closures And Septa For Open-Top Glass Containers

    I-Chem

    Replacement polypropylene open top closures have a bonded-in 0.045” thick septa except for 1709B03, which is a 24-414 open top closure without septa. Choose an I-CHEM® 0.125” thick, 22 mm, PTFE silicone replacement septum to complete the closure system. Thin septa are also available.

  • 13-425 Caps with Pre-inserted Septa

    National Scientific

    Pre-assembled caps and septa are convenient and minimize contamination from handling SepCaps are single piece all polypropylene caps with an integrally molded septum Phenolic resin caps perform well at high temperatures and exposure to corrosives Phenolic and urea storage caps are suitable…

  • Caps

    TriForest

    Media Bottle Cap Provides closures to polycarbonate square, round media bottles, PC vials and culture tubes. Blue is the standard color for all caps though custom colors are available upon request. Duo Cap Accompanies both flat and baffled flasks of all sizes. Also available for media…

  • KIM-KAP®, Polypropylene Closures, Autoclavable, Color Coded

    Kimble

    Convenient, economical closures for use with the Kim-Rak or other disposable culture tubes. Sterility of contents is maintained without the need for cotton plugging. Kim-Kaps can be removed and replaced without contamination of the contents. Yellow cap color.

  • White 24-414 open-top closure with bonded 0.125" septum

    EP Scientific Products

    Septa Caps fit VOA vials and jars with the matching finish. The same high quality septa caps used on our Thermo Scientific VOA Vials, septa bottles and septa jars. Processed to meet EPA Performance Based Specifications for Volatile Organic Analysis.

  • Liquid Scintillation Vial Screw Caps

    Wheaton

    Screw caps for Wheaton liquid scintillation vials Use as replacement caps or for vials that are provided without caps Choose the right size screw cap for your vial Select cap and liner material for your application Case of 1000 provides an economical alterative Not autoclavable

  • Bulk Black Phenolic Caps

    Kimble

    Choice of six liners Screw thread

  • Black Phenolic Screw Caps

    Wheaton

    Tefon®-faced (14B) rubber liners Autoclavable caps are designed to ensure the ultimate in product safety. The liners are made of a nontoxic white styrene-butadiene rubber and are faced with Teflon® which offers excellent chemical resistance. They are available in convenient lab pack quantities…

  • Screw Caps for External Thread Sample Tubes, Silicone Washer

    Simport

    Made of polypropylene Caps are available either with or without a silicone washer between the cap and the tube to ensure a positive leakproof seal at all temperatures. As for tubes, these closures are also made of polypropylene, providing the same coefficient of expansion for both, which…

  • Screw Caps for External Thread Sample Tubes, Lip Seal

    Simport

    Made of polypropylene Caps are available either with or without a silicone washer between the cap and the tube to ensure a positive leakproof seal at all temperatures. As for tubes, these closures are also made of polypropylene, providing the same coefficient of expansion for both, which…

  • Screw Caps With PTFE-Faced Rubber Liner

    Kimble

    Closures are made of a black phenolic material (wood filled) resistant to the effects of autoclaving.  Cemented-in polytetrafluroethylene ( PTFE) faced 14B white rubber liner also retains adhesive properties during autoclaving.  Closures are designed from ASTM Specification E982.

  • White Polypropylene Cap With Teflon Liner

    Wheaton

    Ideal for high purity chemicals, strong acids, solvents Excellent for environmental samples, pharmaceuticals and diagnostic reagents Teflon-faced foamed polyethylene liner offers the excellent chemical resistance of Teflon with the compressibility and sealing properties of polyethylene foam.

  • White Polypropylene Screw Caps

    Wheaton

    Bonded Teflon®-faced silicone liners White, autoclavable caps have a bonded Teflon-Faced Silicone Liner making them suitable for storage and containment of volatile solvents, sensitive compounds and corrosive chemicals.  The liners consist of 0.055” of Silicone and 0.005”…

  • NMR Tube Pressure Caps

    Kimble

    A tight-fitting, polyethylene cap which stays in place even with a build-up of internal vaporization pressures.

  • SAV-IT™ Closures

    Thermo Scientific

    Pliable closures for use with evacuated blood collection tubes and glass and plastic test tubes. They protect from contamination and prevent evaporation. Closure will not crack or pop off. Seals inside test tube or over tube rim. The 12mm and 13mm closures seal over the rim of either 12mm or…

  • F217 & PTFE Lined Black Phenolic Caps

    Qorpak

    Black Phenolic F217 & PTFE Lined Caps are known for providing the widest range of chemical compatibility and for being the most temperature tolerant of plastic closures. Foam backed PTFE liners resist attack from virtually all chemicals at room temperature and provides resilience for a tight seal…

  • Teflon® Cap Liners

    Van Note

    Teflon liners inert to most chemicals and can be autoclaved Thickness: 0.015 inch For insertion in caps of corresponding size; diameter of liners permits sealing in caps by friction fit. Liners can be inserted directly over other flat liners mounted in caps.

  • Two-Position Snap Caps for 12 mm Polystyrene Tubes

    Simport

    Made of polyethylene Plug type push-in caps and 2-position snap caps are made of polyethylene for test tubes with outside diameters of 12 or 17 mm. Dual position caps offer two possibilities: the closed but unsealed position where samples are maintained aerobic for microbiological…

  • Pulp/Vinyl Lined Black Phenolic Caps

    Qorpak

    Phenolic Pulp/Vinyl Lined Caps are perfect for general use. The liner is made of a vinyl coating applied to high density polyethylene coated paper and then it is laminated to pulpboard. This general purpose liner is commonly used for food, beverage, medical and chemical applications packed at less…

  • SturdeeSeal® PE Foam Lined White Polypropylene Caps

    Qorpak

    PP SturdeeSeal® PE Foam Lined Caps are known for good impact strength, cost effectiveness, and pliability. These polypropylene closures with foamed polyethylene liners have excellent sealing characteristics and offer good chemical resistance including acids, alcohols, alkalis, aqueous products,…

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