Hayward GLX-FLO-RP 15-Feet Cable Flow Switch Assembly Replacement Kit for Salt Chlorine Generators

Is there more than one model flow switch for Hayward Prologic controller w/ T-9 cell? Want to make sure I get the correct part..

What exactly is the "T" this comes "without," and excuse my ignorance! I already have the complete Hayward system installed. Just need switch.

Is this a genuine OEM Haywood/goldline part?

if myflow switch is bad will it kick my breaker out