I placed a 6" to 4.5" CF Zero Length Reducer Flange on top of the IFO Cube for the Agilent TwisTorr 74 Turbo Pump (to be ordered). I tightened the bolts to 34 Nm and there was flange to flange contact all around. I also moved a Holometer part that held up an end cube for the elevated IFO into B105 since I don't think we will ever need it and it's quite dirty.