Cons of Expansion Fittings

This method has a better flow, which leads to a higher bursting pressure if the fitting is not right

Complex kink fixing if damaged or broken from anywhere; you would need to replace the entire pipe and connection

The fitting takes longer to install in colder weather that goes below 40 degrees Fahrenheit

Requires a heat gun or any other tool to heat the pipe and ring for a solid connection

Expensive pipe and installations