A couple of other things.

+ Pentair models vary. I spoke with Pentair tech support to verify that that specific model has a toggle switch, and does not require special wiring. The support tech was not 100% sure, but thought that OTHER Pentair 2spd SuperFlo pumps may NOT have the toggle. So I'd recommend buying from the link (plus, I get a commission from Amazon).
+ Regardless, you do not want to get into wiring for 2 speed, unless you have a buddy who is an industrial electrician. THEY can do the wiring, right.


And even though the gauge I linked is a GOOD gage, it still is not freeze proof. If you want a freeze proof gage, that requires . . . well, stuff. I've intended, for years, to assemble and sell freeze-proof gauge sets for commercial pools, but I've never gotten around to it.