Threaded cap GL 45

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Product overview
GL45 screw cap for media bottles with an integrated 0.22 µm PTFE hydrophobic air filter. Manufactured in polypropylene and assembled in a Clean Room Class 10000 environment. Designed to provide controlled gas exchange while ensuring secure sealing for media and cell-culture applications.

Why biotech companies choose GL45 with air filter

• Facilitates regulated inflow and outflow of gases to support bacterial and cell cultures
• Helps maintain cell viability by enabling controlled aeration
• Minimizes risk of cross-contamination through a hydrophobic barrier

Certifications

• USP Class 88
• USP Class 87
• US FDA 21CFR177.1520

Key features

• Material: polypropylene
• Filter: 0.22 µm PTFE hydrophobic membrane
• Assembled in Clean Room Class 10000
• Leak‑proof cap design with secure threads and sealing
• Ensures tight sealing for media bottles and flasks
• Easy to assemble on standard GL45 containers
• Short lead times and responsive logistics
• Customization available on request

Technical specifications

• Material: Polypropylene
• Filter type: 0.22 µm PTFE hydrophobic filter
• Assembly environment: Clean Room Class 10000
• Design: Leak‑proof cap with secure threads and sealing
• Function: Allows controlled gas exchange to support bacterial/cell growth and enhance viability
• Benefit: Reduces risk of cross‑contamination
• Application: Media bottles and laboratory flasks
• Customization: Available on request
• Standards: USP Class 88, USP Class 87, US FDA 21CFR177.1520