Hmmm ok Alan. I think we have crossed wires a little here. I was referring to the second extended tube mouthpiece (the ‘hose’) I recieved two of these with the Pianica 32. The mouthpiece pictured in my latest pics is the Yamaha mouthpiece that comes with the Pianica 32. There is a special storage space for it in the blue carry case. The Hohner mouthpiece you have provided in your ebay link is indeed the one that fits the Piano 36. Yes the mouthpieces appear to be interchangeable between the Pianica 32 and the Piano 36.