Apeks ATX Regulator Total Package comes with ATX Stage 3 set (1st stage, 2nd stage, & Octopus), Pressure Gauge, and Apeks Regulator Bag. Great package deal for Holiday diving.
Before the XTX range of regulators came along, the ATX models ruled the seas. The ATX is still available today and offers a fully balanced first and second stage with cold water capability (can be used in all temperatures including those below 10 C / 50 F). There is a reason why this regulator stays in the industry for so long.