I am going to install a new variable speed pump (probably an intelliflo). They want you to use their breaker that is $45 more than the Siemens equivalent that I haven't been able to tell if there's even a difference. My bigger question though, is I have a GE box in the equipment room currently. It looks like the Siemens type breaker will probably fit, but isn't to code, and I don't want to burn the room down if there's an issue. Is my only option to install another subpanel for just that Siemens type breaker for the pump?