Caps

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Greenwood

  • Black Phenolic Cap With PE Poly-Seal Liner

    DWK Life Sciences (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.

  • Black Phenolic Screw Caps

    DWK Life Sciences (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…

  • White Polypropylene Screw Caps

    DWK Life Sciences (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”…

  • Polypropylene Open-Top Screw Caps

    DWK Life Sciences (Wheaton)

    Bonded Teflon®-Faced Silicone Liners White autoclavable open-top caps have a bonded Teflon-Faced Silicone Liner making them ideal for storage and retrieval of volatile solvents, sensitive compounds and corrosive chemicals. The liners consist of 0.055” of Silicone and 0.005” of…

  • Caps and Seals

    DWK Life Sciences (Wheaton)

    1230K91 - 1230K96: Black phenolic screw caps With 14B rubber liner Autoclavable Ideal for culture work 1230L89 - 1230L94: Tear-off unlined aluminum seals This seal can be completely removed and contents readily poured from bottle

  • White Polypropylene Cap With Teflon Liner

    DWK Life Sciences (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.

  • 28-400 Cap, Phen Blk, Poly-Seal Liner

    DWK Life Sciences (Wheaton)

    Black phenolic screw cap Poly-Seal liner is manufactured from low density polyethylene Unique cone liner design offers superior torque retention and excellent sealing characteristics It is recommended that liner be tested prior to use for leak resistant applications

  • Microlink® Screw Caps

    DWK Life Sciences (Wheaton)

    Ideal for use with biological media, volatile solvents, corrosive chemicals and sensitive compounds Liner is ultrasonically welded to the cap to eliminate the possibility of glue contamination and bond failure common with autoclaving Available in convenient Lab Pack quantities as well as…

  • Black Phenolic Screw Cap With Foil Liner

    DWK Life Sciences (Wheaton)

    Aluminum foil-faced pulp board liners Use these caps with organic solvents

  • 24-400 CAP, PHEN BLK, POLY-SEAL PE CONE

    DWK Life Sciences (Wheaton)

  • 20mm Extended Controlled Dropper Tips

    DWK Life Sciences (Wheaton)

    Tip made of LDPE (Low Density Polyethylene) Extended controlled dropper tip dispenses one drop at a time Average drop size is 44uL

  • Black Phenolic Screw Caps

    DWK Life Sciences (Wheaton)

    These autoclavable caps are designed to ensure the ultimate in product safety. The liners are white styrene-butadiene faced with Teflon.

  • 8-425 Dropper Tip Caps

    DWK Life Sciences (Wheaton)

    Screw cap made of radiation grade polypropylene Variety of colors Packaged in case of 100 or 1000

  • Colored Polypropylene Caps

    DWK Life Sciences (Wheaton)

    Inner seal ring 45 mm size Caps have built-in, wedge-shaped sealing ring, eliminating the need for a liner. Use with Wheaton Lab 45® media bottles.

  • 15-415 Dropper Tip Caps

    DWK Life Sciences (Wheaton)

    Screw cap made of radiation grade polypropylene Variety of colors Packaged in a case of 100 or 1000

  • Snap Caps

    DWK Life Sciences (Wheaton)

    Eliminate the need for crimping and decapping tools Fits the Wheaton E-Z Vials with Snap Ring Top Manufactured from polyethylene Choose from 5 colored caps and a variety of septa

  • 13mm Extended Controlled Dropper Tips

    DWK Life Sciences (Wheaton)

    Tip made of LDPE (Low Density Polyethylene) Extended controlled dropper tip dispenses one drop at a time Average drop size is 44uL

  • 8-425 Cap, PP Blk, PTFE / Sil Lnr

    DWK Life Sciences (Wheaton)

    Pre-assembled Open Top Caps 100/Case

  • Plastic Sample Vials

    DWK Life Sciences (Wheaton)

  • 38-430 STARLINE CAP, PP WHT

    DWK Life Sciences (Wheaton)

  • 15mm Extended Controlled Dropper Tips

    DWK Life Sciences (Wheaton)

    Tip made of LDPE (Low Density Polyethylene) Extended controlled dropper tip dispenses one drop at a time Average drop size is 44uL

  • Liquid Scintillation Vial Screw Caps

    DWK Life Sciences (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

  • 24-400 CAP, PP WHT, PTFE/FMD PE

    DWK Life Sciences (Wheaton)

  • 15-415 CAP, PP WHT, FMD PE LNR

    DWK Life Sciences (Wheaton)

  • 38-430 STARLINE CAP, PP NAT

    DWK Life Sciences (Wheaton)

  • ABC Screw Caps

    DWK Life Sciences (Wheaton)

    Manufactured from polypropylene Low extractable septa 100 pack with 10 packs/case

  • 13-425 Dropper Tip Caps

    DWK Life Sciences (Wheaton)

    Screw cap made of radiation grade polypropylene Variety of colors Packaged in case of 100 or 1000

  • Aluminum E-Z Seals™

    DWK Life Sciences (Wheaton)

    Stoppers with Wheaton E-Z Seals™ have a larger target diameter that makes them ideal for use with the larger-opening E-Z Vials™. These seals are ideal for filling or retrieving contents with a syringe and as closures for many instrumentation applications. The 8 mm seal is designed for…

  • 20-410 Dropper Tip Caps

    DWK Life Sciences (Wheaton)

    Screw cap made of radiation grade polypropylene Variety of colors Packaged in case of 100 or 1000

  • Tamper Evident Caps with Pulp/PVDC/PE Liners, for 28.5 mm vials

    DWK Life Sciences (Wheaton)

    Three pieced lined aluminum caps have unique metal inserts. Contents cannot be pilfered without removing cap or leaving evidence of puncture or insert. A metal tab wilt a rolled safety edge “perks up” to provide visual proof of tight seal. The caps remove quickly and easily in one piece. They…

  • 13-425 CAP, PP WHT, POLY-VINYL LNR

    DWK Life Sciences (Wheaton)

  • 22-400 CAP, PP WHT, PTFE/FMD PE

    DWK Life Sciences (Wheaton)

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