Quote:
Originally Posted by wstar
Yeah my own install I ended up deciding mine was BSPT, or at least BSPT was a better match than NPT was. There was someone else, I forget who, who measured theirs and claimed theirs was definitely NPT, though. It may vary  |
I don't think it would vary, just that they look so similar to the untrained eye and mostly fits (especially in this particular size) so NPT would work, just not ideal and could certainly leak depending on what was used for sealant.