free breast pump thru insurance

I live in California and very fortunate to be with a employer that provide a free breast pump thru insurance.

What I did not realize is that there are a overwhelmingly number of websites that process these pumps through insurance. Wondering if any of you have experience working with a reliable comp that also offers the Spectra S1. My insurance referred me to Aeroflow breastpumps, but they only offer the spectra S1 with lactation course, I don’t need the lactation course and it cost the same as in store as a package 🙄

Where did you get your insurance covered BP? And which one did you get?