This backup second stage is balanced, has a dive pre-dive switch, comes with a male quick connection part, and a 120cm/48” QC Extraflex Yellow hose.

Every IDM diver, especially if diving with an IDM buddy with should have the option, if needed to bail out with a conventional second stage, or Quick Connect (QC) hard connection. 

This second stage allows you to assist a dive buddy using a conventional regulator or a buddy using a full face mask (IDM) thanks to the quick connect (QC) feature on the hose.