660/10 nm Bandpass Filter mounted for use in the CytoFLEX, CytoFLEX S, and CytoFLEX LX Wavelength Division Multiplexer (WDM). The filter holder allows the bandpass to be repositioned to meet experimental requirements. The 660/10 nm Bandpass Filter is supplied as a standard filter in all models of the CytoFLEX Platform. This filter is useful for detecting Alexa Fluor 647, Allophycocyanin (APC), Brilliant Violet 650, Cy5, eFluor 660 and Qdot 655.