Vertical handle for E61 grouphead flow control valve

This is a simple handle that converts the horizontal arm of Coffee Sensor's E61 grouphead flow-control valve into a vertical one. I find this simple change makes using the valve far easier, as keeping the fingers on a vertical handle's a far more intuitive operation, especially when operating it past a fraction of a turn.

This was desgined to have a snug interference fit onto the existing handle. It simply slides very snugly onto the existing handle.

As I sized this to fit the Coffee Sensor handle, I did not check for fit on the Profitec version, though they are so similar I wouldn't be at all surrise if it also fits those.