You can give our Paslode/Duo-Fast customer service team a call and they can direct you on how to get the O-rings you need: (800) 222-6990
The recommended operating pressure is 80-120 psi.
While I appreciate your question and want to help you out, I think that you would be more than satisfied with the Duo-Fast Coil-Nailer that you posted your question under. It is a high quality tool that has nails manufactured specifically to match its performance and generate the best combination of tool and nail as possible. If you are still looking for the Hitachi please contact Hitachi Customer Service.
Yeah, It seems Home Depot USED to carry items like the nails for these AWESOME guns, but in the last few years do not carry them anymore on the east coast. Now, all they carry are nails for their lesser quality items. I am trying to find nails too...
No. This is a siding and decking gun. Fences...etc. That sort of thing.
90 days...get a bostitch they have 7 year warranties