center neck screw cap, two closed sidearm caps, and a shaft with vortex impeller paddle assembly.
This spinner flask offers unsurpassed performance and convenience. All spinner flasks feature unique extended paddle design to ensure uplift flow in all portions of flask providing homogeneous circulation of cells and medium from the bottom of the flask to the top to provide oxygenation and circulation of nutrients. These reusable spinner flasks are equipped with large sidearm openings that easily accept 25- or 50-mL pipettes.
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