(tirsa-100) Rebuilt IR source (with new filament, insulation, cord, and plug), for Thermo Nicolet Avatar FTIR models 320, 330, 360, 370, and 380

Rebuilt IR source (with new filament, insulation, cord, and plug), for Thermo Nicolet Avatar FTIR models 320, 330, 360, 370, and 380.  This requires a core exchange.  Send back old IR source after the new one is received (use same box).  This part replaces Thermo Nicolet part numbers 470-081900, and 713-015400.