Our 34" brake cable for rollators and wheelchairs has a screw ferrule 6-1/2" (165 mm) from the barrel end. This brake cable may be adapted to a number of rollator and wheelchair models, and it represents a good product at a very nice price.
We do not have information on Medline models. However, this part is going to be universal so as long as all the specifications match up it will be compatible with your unit. If it doesn't work, you would have 60 days to return any unused items for a refund.
Although this was not a direct fit, I was able to make it work by machining a new part to connect the cable to the wheel area brake lever. In the end, it worked just fine with some creativity.