I use the CPAP Pro no-mask system (mouthpiece rather than head gear) which is unusual in this way: two separate nasal pillows rather than one piece with two openings, two thin tubes that fit into a collar, the collar fits into the main tubing.
Here's the issue: the pair of tubes that attach to the separate nasal pillows are very fragile and constantly springing holes and splitting. The company which makes CPAP Pro has a corner on this market, apparently. Which is how they can charge $45 for two tubes that can't cost them more than $1. I have no problem with them making a decent profit, but this feels like exploitation. For somebody with severe sleep apnea, this is not a vanity purchase, after all and as we don't have medical insurance, it all comes out of our (quite shallow) pockets.
So I started researching medical grade, flexible, corrugated tubing (9mm internal diameter; 12mm external diameter), and I have to admit that it's all really confusing out there in medical supply land. I don't mind buying a lot of the stuff at once -- the tubing splits so often that I end up replacing it every month or so -- if I could only find it. I'm also on the lookout for the single nasal pillows (for which the company charges a whopping $45 a set), but the tubing is more crucial at this point.
Can anybody suggest where to find this kind of tubing? Thanks for whatever information you may be able to share.