Optimum Growth™ Inversion Transfer Caps

Thomson’s Inversion Transfer Caps provide a fast, aseptic, and pump-free solution for transferring culture media and reagents directly from Optimum Growth® flasks into bioreactors, cell bags, or other vessels.

• Eliminate the need for intermediate bottles; connect and invert directly into wave bags, bioreactors, or other receiving vessels

• Sterile, closed system simplifies aseptic workflows, with no pumps or laminar hood steps required
• Fast setup - assembly takes approximately five minutes per flask
• Multiple connection options support flexible integration into various systems
• Compatible with 1.6, 2.8, and 5 L Thomson Optimum Growth® Flasks
• All caps feature 0.2 µm PTFE air filter ventilation
• All included C-Flex® tubing lengths are 24" (609.6 mm)
• Gravity-driven system eliminates the need for power or pump validation steps

Designed for use with 1.6, 2.8, and 5 L flasks, these caps rely on gravity-driven flow for gentle media transfer, helping protect sensitive cells during seeding and scale-up. Ideal for PEI-DNA complex transfers or other workflows where pumping may be too aggressive, the Optimum Growth® Transfer Inversion Caps reduce cell loss by up to 20% compared to traditional pump systems. Made in the USA and individually packaged for cleanroom-ready use.