PEX-A (expansion PEX) almost all have a limited warranty period of 20-25 years depending on manufacture. It’s minimum reported lifespan is closer to 40-50 years with it estimated to be as high as 100 years depending on water quality, usage, other factors.
> limited warranty period of 20-25 years depending on manufacture
If there’s a significant enough problem, these construction manufacturers have a tendency to go out of business and reorganize, voiding all the warranties in the process.
