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Stoppers and Stopcocks

Browse our curated selection of Stoppers and Stopcocks from leading global manufacturers. Find research-grade reagents, certified standards, and specialty supplies backed by Cenmed's expert sourcing and technical support.

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  • adapter, flow control, 14/20, glass, 90ã¸
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    CG-1028-14

    Adapter, Flow Control, 14/20, Glass, 90

    Price: $279.14
    List Price: $310.15
    Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm and is supplied complete with a CG-423 retaining clip. Hose connection has an O.D. of 8mm at the middle serration.
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    SKUCG-1028-14
    MFR. NameCHEMGLASS LIFE SCIENCES
    Catalog No. C003B-108414
    Pack Size 1 EA
    Price:
    Price: $279.14
    List Price: $310.15
    Quantity:
     
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    Product Information

    Catalog No.
    C003B-108414
    Description
    Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm and is supplied complete with a CG-423 retaining clip. Hose connection has an O.D. of 8mm at the middle serration.
  • adapter, flow control, 14/20, ptfe stopcock
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    CG-1030-14

    Adapter, Flow Control, 14/20, PTFE Stopcock

    Price: $207.32
    List Price: $230.35
    Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm. Hose connection has an O.D. of 8mm at the middle serration with the exception of CG-1030-45 which has an O.D. of 14mm.
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    SKUCG-1030-14
    MFR. NameCHEMGLASS LIFE SCIENCES
    Catalog No. C003B-108492
    Pack Size 1 EA
    Price:
    Price: $207.32
    List Price: $230.35
    Quantity:
     
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    Product Information

    Catalog No.
    C003B-108492
    Description
    Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm. Hose connection has an O.D. of 8mm at the middle serration with the exception of CG-1030-45 which has an O.D. of 14mm.
  • adapter, flow control, 19/22, glass, 90ã¸
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    CG-1028-19

    Adapter, Flow Control, 19/22, Glass, 90

    Price: $310.85
    List Price: $345.39
    Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm and is supplied complete with a CG-423 retaining clip. Hose connection has an O.D. of 8mm at the middle serration.
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    SKUCG-1028-19
    MFR. NameCHEMGLASS LIFE SCIENCES
    Catalog No. C003B-108478
    Pack Size 1 EA
    Price:
    Price: $310.85
    List Price: $345.39
    Quantity:
     
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    Product Information

    Catalog No.
    C003B-108478
    Description
    Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm and is supplied complete with a CG-423 retaining clip. Hose connection has an O.D. of 8mm at the middle serration.
  • adapter, flow control, 19/22, ptfe stopcock
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    CG-1030-19

    Adapter, Flow Control, 19/22, PTFE Stopcock

    Price: $304.77
    List Price: $338.63
    Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm. Hose connection has an O.D. of 8mm at the middle serration with the exception of CG-1030-45 which has an O.D. of 14mm.
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    SKUCG-1030-19
    MFR. NameCHEMGLASS LIFE SCIENCES
    Catalog No. C003B-364218
    Pack Size 1 EA
    Price:
    Price: $304.77
    List Price: $338.63
    Quantity:
     
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    Product Information

    Catalog No.
    C003B-364218
    Description
    Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm. Hose connection has an O.D. of 8mm at the middle serration with the exception of CG-1030-45 which has an O.D. of 14mm.
  • adapter, flow control, 24/40, glass, 90ã¸
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    CG-1028-01

    Adapter, Flow Control, 24/40, Glass, 90

    Price: $179.39
    List Price: $199.32
    Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm and is supplied complete with a CG-423 retaining clip. Hose connection has an O.D. of 8mm at the middle serration.
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    SKUCG-1028-01
    MFR. NameCHEMGLASS LIFE SCIENCES
    Catalog No. C003B-108412
    Pack Size 1 EA
    Price:
    Price: $179.39
    List Price: $199.32
    Quantity:
     
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    Product Information

    Catalog No.
    C003B-108412
    Description
    Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm and is supplied complete with a CG-423 retaining clip. Hose connection has an O.D. of 8mm at the middle serration.
  • adapter, flow control, 24/40, ptfe stopcock
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    CG-1030-01

    Adapter, Flow Control, 24/40, PTFE Stopcock

    Price: $228.51
    List Price: $253.90
    Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm. Hose connection has an O.D. of 8mm at the middle serration with the exception of CG-1030-45 which has an O.D. of 14mm.
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    SKUCG-1030-01
    MFR. NameCHEMGLASS LIFE SCIENCES
    Catalog No. C003B-108552
    Pack Size 1 EA
    Price:
    Price: $228.51
    List Price: $253.90
    Quantity:
     
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    Product Information

    Catalog No.
    C003B-108552
    Description
    Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm. Hose connection has an O.D. of 8mm at the middle serration with the exception of CG-1030-45 which has an O.D. of 14mm.
  • adapter, flow control, 90 , 2mm stpk, 24/40 outer joint
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    CG-1030-A-01

    Adapter, Flow Control, 90 , 2mm Stpk, 24/40 Outer Joint

    Price: $344.33
    List Price: $382.59
    Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm. Hose connection has an O.D. of 8mm at the middle serration. With standard taper outer joint.
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    SKUCG-1030-A-01
    MFR. NameCHEMGLASS LIFE SCIENCES
    Catalog No. C003B-364361
    Pack Size 1 EA
    Price:
    Price: $344.33
    List Price: $382.59
    Quantity:
     
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    Catalog No.
    C003B-364361
    Description
    Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm. Hose connection has an O.D. of 8mm at the middle serration. With standard taper outer joint.
  • adapter, flow control, straight, 2mm stpk, 19/22 inner joint
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    CG-1029-19

    Adapter, Flow Control, Straight, 2mm Stpk, 19/22 Inner Joint

    Price: $337.88
    List Price: $375.43
    Used to regulate the flow of gases or liquids into reaction systems. PTFE stopcock has a bore of 2mm. Hose connection has an O.D. of 8mm at the middle serration.
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    SKUCG-1029-19
    MFR. NameCHEMGLASS LIFE SCIENCES
    Catalog No. C003B-364157
    Pack Size 1 EA
    Price:
    Price: $337.88
    List Price: $375.43
    Quantity:
     
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    Product Information

    Catalog No.
    C003B-364157
    Description
    Used to regulate the flow of gases or liquids into reaction systems. PTFE stopcock has a bore of 2mm. Hose connection has an O.D. of 8mm at the middle serration.
  • adapter, flow control, straight, 2mm stpk, 24/40 inner joint (c08-0346-921)
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    CG-1029-G-01

    Adapter, Flow Control, Straight, 2mm Stpk, 24/40 Inner Joint (C003B-108430)

    Price: $185.23
    List Price: $205.81
    Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm and is supplied complete with a CG-423 retaining clip. Hose connection has an O.D. of 8mm at the middle serration.
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    SKUCG-1029-G-01
    MFR. NameCHEMGLASS LIFE SCIENCES
    Catalog No. C003B-108430
    Pack Size 1 EA
    Price:
    Price: $185.23
    List Price: $205.81
    Quantity:
     
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    Product Information

    Catalog No.
    C003B-108430
    Description
    Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm and is supplied complete with a CG-423 retaining clip. Hose connection has an O.D. of 8mm at the middle serration.
  • adapter, flow control, straight, 2mm stpk, 29/42 inner joint (c08-0347-170)
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    CG-1029-G-02

    Adapter, Flow Control, Straight, 2mm Stpk, 29/42 Inner Joint (C003B-364228)

    Price: $306.70
    List Price: $340.78
    Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm and is supplied complete with a CG-423 retaining clip. Hose connection has an O.D. of 8mm at the middle serration.
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    SKUCG-1029-G-02
    MFR. NameCHEMGLASS LIFE SCIENCES
    Catalog No. C003B-364228
    Pack Size 1 EA
    Price:
    Price: $306.70
    List Price: $340.78
    Quantity:
     
    The item has been added

    Product Information

    Catalog No.
    C003B-364228
    Description
    Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm and is supplied complete with a CG-423 retaining clip. Hose connection has an O.D. of 8mm at the middle serration.
  • adapter, flow control, straight, 2mm stpk,19/22 inner joint
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    CG-1029-G-19

    Adapter, Flow Control, Straight, 2mm Stpk,19/22 Inner Joint

    Price: $260.41
    List Price: $289.35
    Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm and is supplied complete with a CG-423 retaining clip. Hose connection has an O.D. of 8mm at the middle serration.
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    SKUCG-1029-G-19
    MFR. NameCHEMGLASS LIFE SCIENCES
    Catalog No. C003B-108371
    Pack Size 1 EA
    Price:
    Price: $260.41
    List Price: $289.35
    Quantity:
     
    The item has been added

    Product Information

    Catalog No.
    C003B-108371
    Description
    Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm and is supplied complete with a CG-423 retaining clip. Hose connection has an O.D. of 8mm at the middle serration.
  • adapter, flowcontrol,90ã¸, 14/20 inner jt
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    CG-1030-M-14

    Adapter, FlowControl,90, 14/20 Inner JT

    Price: $382.65
    List Price: $425.17
    Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm, and has an internal needle valve which permits for fine control of gases or liquids added to reactions.
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    SKUCG-1030-M-14
    MFR. NameCHEMGLASS LIFE SCIENCES
    Catalog No. C003B-108670
    Pack Size 1 EA
    Price:
    Price: $382.65
    List Price: $425.17
    Quantity:
     
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    Product Information

    Catalog No.
    C003B-108670
    Description
    Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm, and has an internal needle valve which permits for fine control of gases or liquids added to reactions.
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About Stoppers and Stopcocks

Cenmed Enterprises provides a comprehensive selection of Stoppers and Stopcocks products sourced from leading global manufacturers. Our catalog spans research-grade reagents, certified standards, and specialty compounds used across clinical, academic, and industrial laboratories worldwide.

With decades of expertise in laboratory supply distribution, we offer competitive pricing, reliable stock availability, and dedicated technical support. Whether you need small quantities for research or bulk orders for manufacturing, our team is ready to assist with sourcing, compliance documentation, and logistics.

Frequently Asked Questions

  • What documentation is provided with orders?

    All orders include a Certificate of Analysis (CoA), Safety Data Sheet (SDS), and a packing slip. Additional regulatory or compliance documentation can be requested at the time of order for products requiring special handling or import/export certification.

  • What is the minimum order quantity?

    Minimum order quantities vary by product and are listed on each product page. For bulk or custom quantity orders, please contact our sales team at 732-447-1100 or request a quote online for custom pricing.

  • How long does shipping take?

    Standard orders ship within 1–3 business days from our New Jersey distribution center. Expedited and international shipping options are available. Hazardous materials ship in compliance with IATA/DOT regulations and may require additional lead time.

  • Can I return a product?

    We accept returns on non-hazardous, unopened products within 30 days of delivery. Controlled substances, refrigerated items, and custom orders are non-returnable. To initiate a return, please complete the return request form and submit it to our customer service team for approval. Returns will be processed once your request has been reviewed and authorized.

  • Do you offer volume discounts?

    Yes. Volume pricing is available for most products in our catalog. Contact our sales team or use the "Request a Quote" feature to get custom pricing for your organization based on your annual purchase volume and specific product needs.

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