Hello 900rr1, Thanks for your feedback and we're sorry to have learned your disappointment. While we're not certain how the splitting happened on the original hose, note that the hoses will naturally wear out as you use the vac. We could inspect whether it's a manufacturing defect or it's normal wear and tear. In addition, it's true that our new hoses no longer have the adapter for the old vacuum models. However, you may call call our Customer Service at 1-800-474-3443 from Monday through Friday between 8:00 AM to 5:00 PM Central Time and we'll see how we can be of help. Thanks, RIDGID