I've been using the 1ft nasal cannula and tubing with a swivel but they are getting very scarce out there. The prongs are much shorter and definitely softer than any other brand I've tried. I just purchased the last 2 that I could find at Direct Home Medical online. Amazon used to carry them but no longer does. I read somewhere that Salter was permanently closed? I really need a new source for a comfortable, short nasal cannula and tubing. Thanks if you can help!