Advanced Instruments Advanced® Model 4250 ForumsSign in to Start a DiscussionStart a Discussion Wed Oct 28 2020Asked byclinitest advanced instrument 4250 Thu May 16 2019Asked byqUaliTy801 Heat Transfer Fluid not circulating Mon Dec 03 2018Updated bywaterdynamic13@gmail.com price of this item Thu Dec 16 2010Updated byDavid Tozer, CET 4D3 & 4250 Head problem Page 1 of 1 1Ask a QuestionStart a Post: Advanced Instruments - Advanced® Model 4250SubjectEnter a question about troubleshooting, PM, buying advice and more… Sign in to Submit your DiscussionSubmit your Discussion