Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include
I believe it is a specific hose. If the problem is at the quick connect it is serviceable.
If you don't need the QD, you should be able to replace it with a regular HP hose.
How do I know that? A few years ago my QD hose died, shortly before a The shop said that there would be a delay in getting the part. I realized that I hadn't used the QD since I switched to a "wrist mount" computer. They were able to replace the hose and delete the QD coupling.