HUGE LOT of Beckman Ultra Centrifuge Parts- Rotor Caps Neck Gaskets # 42.1 42K RPM NOTE - 1. You get what you see here. There is the Rotor 42.1 and the rest of the parts have no part numbers. There is a big variety. If you want just one or some of the parts, let me know and I may break this up for the right price. Many parts are new and some gently used. All will work. Some gaskets (o rings) may be busted. 2. I have been informed the ROTOR is old and needs to be retired. You buy this and use at your own risk. I was told it may be of use if you lower the RPMs 3. The Cap Vise Grip is no longer apart of this sale. I broke that out and am selling it separate. 4. SO in essense the auction is for a variety of caps. they have no numbers on them, but look new. This is awesome. You will love this. Hard to find. Got this from Fortune 500 Company overstock sale. This is old school but should work . Please see description above. This has been in deep storage for years, will work at lower RPMs or money back. Please check out my Beckman accessories, for this Centrifuge model, that I am listing separate. I bought a bunch of this stuff together. FREE SHIPPING.