Since I seem to be on a scuba phase of my preoccupation cycle, I’ll post some scuba related reviews. I’ll start with the Apeks DS4. This 1st stage regulator is a no-nonsense device. It has a dry-sealed (DS) system which means it has a sealing outer diaphragm which transmits pressure over the primary diaphragm. The water doesn’t get in contact with internals and freeze things in cold water. It is also overbalanced. This means the deeper you get, slightly more pressure is delivered to the 2nd stage regulator. It has 4 medium-pressure ports, and 1 high-pressure port. It came with a DIN fitting so I needed a yoke adapter for using it with the tanks that are commonly available locally.
I haven’t really used too many other 1st stages so all I can say is that it works and it works well. The fact that many advanced divers recommend it is testament to its capabilities.
Rating: 5/5