We do still sell parts such as glassware for our customers with Carousel 6/12 Classic and Tornado Classic systems. Please contact us for details, and ensure you specify you have a Classic version.
Please note that some of the current Plus parts are not compatible with Classic. For example, the thread at the top of the Carousel 12 tubes and Carousel 6 reflux tubes, and so inside the PTFE caps and Tornado caps, were different for Classic than for Plus, as shown below.