The
example shown is a nitrox prepared unit
DST
The DST first stage is one of the world's top 1st stages with proven performance and reliability.
This is one of Apeks most popular regulators. DST stands for Dry Sealed System with swivel turret and employs 4 MP ports, 1 x 1/2 UNF + 3 x 3/8 UNF, 2 HP ports 7/16 UNF.