The Attune™ NxT External Fluid Supply is an accessory for the Attune™ NxT Acoustic Focusing Cytometer. It was designed to facilitate the use of a larger buffer and waste container. The system works by monitoring and supplying the internal fluid tanks on the Attune NxT instrument so that the system can run without having to stop instrument operation to change out the fluid tanks or empty the waste. The external fluid system uses the 10 L cube of Attune™ Focusing Fluid (Cat. No. A24904) and a Nalgene™ waste bottle. The external fluid supply is ideal for use with the Attune™ NxT Autosampler and enables the collection of approximately 28 96-well or 7 384-well plates without changing the fluid tanks.