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Look back through the thread, a few including myself have posted up links.

https://www.elgas.co.nz/resources/elgas-blog/150-what-is-the-difference-between-propane-vs-lpg-nz

Thanks, I'll go let my wife know the bad news.

caveat emptor, Just my experience with them. I have had a few duds from Aliexpress so hopefully you get a good one. I am currently trying to get them to process a refund on an order that is over two...

I bought one of those with the green seal on the end, the thread was crap and wouldn't fit some bottles, cleaned the thread with a fine file and it improved but still wouldn't seal on several...