Is black stove pipe standard?

[Lcback]

I am trying to change up my inside chimney pipe. Last year I simply had two 45's and a horizontal run in between them. But to clean it I always had to lose the furnace away from the pipe. I really didn't like doing that. This year I wanted to add a clean out T to the bottom. But they all seem so expensive. $60 and up for single wall clean out t. And that doesn't include the cap!? So my question is. Do I have to go with the duravent duravent brand like my current set up is. Or is there a standard for stove pipe and I can buy any generic stove pipe brand and they all still connect together?

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[Buzz Saw]

Is this single wall?

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[Lcback]

Yes sorry I left that out. Single wall pipe

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[Buzz Saw]

Yes sorry I left that out. Single wall pipe

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All the single wall pipe I've ever seen has a generic crimp end. Mix & match brands & fittings as needed.

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[Lcback]

Thank you. That makes life easier.

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[Highbeam]

There are certainly differences between brands but not so different as to be incompatible. I would be most concerned with adding random chunks from different brands in the middle. If you replace all of the single wall it should be fine.