Hi brianfrancisco,
Thanks for using LabWrench!
I would suggest using the "Request a Quote" page to request information from the company about the parts you are seeking. I have provided the link below:
http://www.labwrench.com/?equipment.requestAQuote/equipmentNo/2857/Hettich/Universal-16/
Another option is to look through the classified and auction ads on LabX.com. If you find what you are looking for, you can contact sellers directly using the contact form on the right-hand side of the ad page. If you can't find what you are looking for I would suggest posting a free "Wanted" ad.
Best,
Danielle