I'll show you what I believe to be the best way to run your Mr Heater Big Buddy off of a 20 pound propane tank. No filters, no adapters.
Big Buddy Heater https://www.amazon.com/dp/B07Q82MG8S?tag=mus0a-21
Quick Connect Hose https://www.amazon.com/dp/B07GD4JQ4F?tag=mus0a-21
Email [email protected]