No, I wouldn't be willing to write up a disclaimer. My point is that if you sell a used item, whether scuba, yard maintenance, kitchen appliance, or whatever, you can be sued. However, the likelihood of that is low. The likelihood of someone prevailing is also very low. Combined, you're probably more likely to be struck by lightning than face a judgement for a used regulator. To be successful, someone would have to prove, inter alia, that you had a duty to them. A professional seller might have such a duty, but I don't believe many courts are going to extend such a duty to a casual seller of used goods. Imagine what that would do to garage sales, Goodwill, the Salvation Army, etc.
I also would not offer a written disclaimer of anything, including an "as-is" status. If you're worried about liability, imagine a weasely lawyer seizing on that as-is disclaimer as evidence that you knew the item was somehow compromised.
This is not legal advice, and no lawyer-client relationship is intended or formed by this posting. I am not licensed to practice in all states, and am not a product liability or personal injury lawyer. All my comments should be regarded "as-is," and not warranteed in any way, shape, or form.
I also would not offer a written disclaimer of anything, including an "as-is" status. If you're worried about liability, imagine a weasely lawyer seizing on that as-is disclaimer as evidence that you knew the item was somehow compromised.
This is not legal advice, and no lawyer-client relationship is intended or formed by this posting. I am not licensed to practice in all states, and am not a product liability or personal injury lawyer. All my comments should be regarded "as-is," and not warranteed in any way, shape, or form.