Check out this link, I wonder if they are gone:
"We have not been successful contacting them to reorder stock and suspect that they have gone out of business."
I bought a brand-new Rapid Air and tried it out for the last part of this season and decided it isn't for me. Get your money back from that order and I'll sell it to you for $175. It probably has about 10 days on it and is still in new condition with the box and all documentation. I don't remember exactly what I paid for it...probably $350 ($370 with tax?)...so I'll give it to you for less than half-price. You can breathe off of it before you buy it...the tank is 2/3 full right now.
To be honest, it feels like I'm carrying a brick in my pocket when I'm wearing it and it is easier to use without a facemask (and I wear a facemask). I don't really paddle much above V- anyways so hopefully I'll be walking around anything that would make me wish I still had an air tank on my chest.
In the future, I am going to just carry a quick air hose. But...if you think the tank is for you then send me email.