[Fiishman]

What exactly is the difference between the GRO and PRO series regulators?

And what is the difference between the outdated Ultimate CO2 regulator and the new PRO series (or GRO, whichever is more relevent)?

Thanks,

 

[Jaiel0b]

I believe the only difference is:

Gro - industrial grade regulator body

Pro - Pro Industrial regulator body with stainless steel inlet filter and sealed valve cartridge for precise regulation of flow