GL45 Stainless Steel 2-Port Connector Cap
The GL45 stainless steel 2-port connector cap is designed for closed laboratory fluid systems that require two independent tubing connections. It combines a red PBT GL45 screw cap, a 316L stainless steel connector insert and a silicone gasket to support reliable gas and liquid sealing during aseptic liquid transfer.
Specifications and Construction
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Compatible bottle neck: GL45 laboratory reagent bottle thread.
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Screw cap: Red PBT plastic.
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Connector insert: 316L stainless steel 2-port design.
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Seal: Silicone gasket.
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Autoclaving temperature: 121–134°C.
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Pack size: 6 sets/box.
Available Port Configurations
| SKU |
Port Configuration |
Pack Size |
| CBC0405S2P |
2 × 4–5.5 mm |
6 sets/box |
| CBC0607S2 |
2 × 6–7.5 mm |
6 sets/box |
| CBC0809S2 |
2 × 8–9.5 mm |
6 sets/box |
| CBC4567S2 |
4–5.5 mm + 6–7.5 mm |
6 sets/box |
| CBC4589S2 |
4–5.5 mm + 8–9.5 mm |
6 sets/box |
| CBC6712S2 |
6–7.5 mm + 11–12 mm |
6 sets/box |
| CBC8912S2 |
8–9.5 mm + 11–12 mm |
6 sets/box |
Silicone Tubing Compatibility
| Connector Outer Diameter |
Compatible Silicone Tubing |
| 4–5.5 mm |
1/8 inch (16#) |
| 6–7.5 mm |
3/16 inch (25#) |
| 8–9.5 mm |
1/4 inch (17#) |
Selection note: Configurations containing an 11–12 mm port are listed by connector outer diameter. Confirm the tubing inner diameter required for your system before ordering.
Key Features
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Two-port fluid connection: Supports separate inlet and outlet lines or independent gas and liquid paths.
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316L stainless steel ports: Corrosion-resistant construction for biopharmaceutical, chemical and general laboratory applications.
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Autoclavable PBT cap: Suitable for autoclaving at 121–134°C.
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Silicone gasket: Helps maintain reliable gas and fluid tightness in a closed bottle system.
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Multiple port configurations: Includes equal-size and mixed-size port combinations for different tubing setups.
Applications
- Aseptic transfer of reagents and culture media
- Mobile phase and solvent reservoir connections for laboratory instruments
- Fermenter feed or waste bottle connections
- Closed reaction systems using inert gas or negative pressure
