Crown looks like a bigger 4219 instead of the correct (and slimmer) BF1080
Sometimes both the slimmer and the bigger won't fit in these (14381/14393/14900/14902) then I have to settle with this.
But if you still want the slimmer then you have to change the tube.
Well, yes half missing (by weight I would say 2/3 if we are getting picky). But my point is there may be more than just a screw required. If the broken bit can be removed yes all you would need is a new screw, but I just had to replace a regulator where the old broken screw is simply not coming out...