[Alan Brinton]

It does not fit the other end of the regular HM-26/27/32 mouthpiece. Possibly it could be stretched to do so. However, the Proline 3/4 OD, 5/8 ID does. I bought a ten foot roll of each of these diameters, about $7 each if I remember correctly, at either Home Depot or Lowes. I wish it were more flexible.

Also, the fit on the mouth end is air tight and feels snug, but I think it needs a clamp since that end is not round. It works its way off when I try to use the Bootay Method with a 5″ long piece, and it kinks if much longer than that and forced to bend. I don’t think this kind of vinyl tubing will be flexible enough for your 14″ extension. The more flexible it is (still not very), the more easily it will kink.

Here, by the way is a different brand (from Ace Hardware) of 3/8″ ID tubing (similar but even less flexible), which fits nicely on the mouth end of a standard Suzuki mouthpiece.

It seems that this kind of vinyl tubing works better for making a connection or as a short mouthpiece extension (as I am using on my original metal Hohner Pianos 26/27). It’s nice to blow into.