Optimum Growth® Inversion Transfer Caps are designed to simplify aseptic liquid transfer workflows for mammalian and insect cell culture applications by enabling gravity-driven transfer directly from Optimum Growth® flasks to downstream vessels. These sterile transfer caps eliminate the need for intermediate vessels or pump-based systems, helping reduce handling steps, contamination risk, and process complexity during scale-up and seed train operations. Unlike pump-assisted systems, gravity-based transfer provides a gentler method for moving sensitive suspension cultures, helping maintain cell viability and minimize shear stress.

Ideal for cell culture scale-up, media addition, inoculation workflows, and bioprocess development, Optimum Growth® Inversion Transfer Caps integrate seamlessly into closed-system workflows used with cell bags, bioreactors, and culture vessels from multiple manufacturers.

Utility

• Enables aseptic transfer of media and suspension cells into bioreactors, cell bags, and culture vessels.
• Supports efficient seed train expansion and scale-up workflows.
• Reduces vessel-to-vessel handling by allowing flasks to function as transfer vessels.
• Provides a pump-free transfer approach for shear-sensitive mammalian and insect cell cultures.

Key Features

• Gravity-driven transfer system for gentle, low-shear fluid movement.
• Compatible with Optimum Growth® 1.6 L, 2.8 L, and 5 L flasks.
• Sterile construction with aseptic connection options including quick connect, tube fuse, and luer lock formats.
• Supports closed-system bioprocessing and scalable cell culture workflows.
• Designed to minimize contamination risk and preserve culture viability during transfer.