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FlexCap - Universal silicone adapter for Shake Flasks


FlexCap - one connection cap for all flask types

The Kuhner FlexCap is a universal silicone adapter lid that enables the utilization of various sizes and forms of shake flasks in the Kuhner TOM system to measure the oxygen and carbon dioxide transfer rates. Its specific construction seals both the smaller and more narrow flasks (min. 25 mm inner diameter) and the larger and wider flasks (max. 55 mm outer diameter), respectively, using the same universal lid. With the FlexCap, also cultivations in custom-made flasks and baffled shake flasks are now accessible for online measurements with the Kuhner TOM system.

Order number Description
107105 FlexCap - Set of 4 pieces

In addition, the FlexCap can also be used for aeration of shake flask cultivations with FlowCon and Kuhner AerationSystem (consisting of FlexCaps and GasDivider). This enables users to run cell cultivations in a non-humidified and non-O2/CO2-controlled environment. The FlowCon provides a precise gas composition and flow rate, while the GasDivider humidifies and distributes the gas flow evenly to the inlet ports of the FlexCaps.

Besides the ports for air inlet and outlet, the FlexCap comes with an extra port for external feeding and sampling. Best of all, the FlexCap is reusable by autoclaving at temperatures up to 121°C without losing its mechanical performance.



Tell us your requirements!

Send us a sample of the container that needs to be shaken.
We will build a suitable holder.


Custom-made accessories, an everyday occurance for us.

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