Graber Blinds and direct Zwave communication with Vera Plus

Can someone confirm if I purchase these blinds I do not need the ZRTSI module to have this work with my vera plus.

I been talking to distributors and they are stating that I need the ZRTSI module installed also to get it to work with my home automation.

Hope someone can explain this to me.

ZRTSI is needed only with RTS blinds. The Zwave ones don’t need the bridge.

@rafale77 - thanks for the response, I appreciate it.