Thinking of buying freemie. Which pumps can the freemie connect to?

Freemies are a pretty good investment! My colleague uses them at work and nobody knows she's pumping except those nearest to her. You can refer to Freemie's website for the list of compatible pumps since different Freemie cups have different compatibility. http://www.freemie.com/compatible-pumps.html

Most of the pumps are compatible to freemie. It is highly recommended for working mothers to pump at work. It is very easy to use and worth the investment.

I used S1 with Freemies.