This filter cube is new "old stock" from a former Nikon dealer inventory. It will fit the Nikon Eclipse series of fluorescent microscopes, E400, E600, E800 and TE200/300. It is in the Omega catalog with a product number of XF-18-2.  The cube is in new condition and still in its' plastic bubble case.. It is suitable for Fura Red (high calcium) and DiA (4-DDi-16-ASP) fluorochromes.

XF-18-2 Specifications:

• Excitation Filter Wavelengths: 455 DF70  nanometers 

• Dichromatic Mirror Cut-on Wavelength: 515 DLRP nanometers 

• Barrier Filter Wavelengths: 515 ALP nanometers