Regulator Guide

1st & 2nd Stage Dive Regulators

Choosing a scuba diving regulator begins by purchasing the first and second stages like those shown here. You will need to also purchase in addition to these dive gauges, and an alternate air source (octopus), the BCD inflator hose can be purchased separately but this will be supplied when you buy a BCD. The general rule is the more you pay the easier the breathing.

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Adam Dean says:

Is it worth it ro buy old regulators, i cant afford the newer stuff.

Richard Slater says:

As I’m new I’m a little confused about the 3rd stage and 4th stage regulators you mentioned, can’t all 1st stages add dials and a second regulator?

Thomas Nelson says:

your comments on the balanced first stage vs. non-balanced first stages are incorrect. All first stages we use are “depth compensating”, and the Apeks “over-balanced” regulator you commented on is actually “over-compensating”. A non-balanced first stage does not hold IP as a function of tank pressure so the second stage breathing resistance changes as a function of tank pressure, not depth.
It’s a common confusion since Apeks refers to their over-compensation for depth as “over-balancing” but it is a different type of balancing than a “non-balanced” first stage like the Scubapro MK2

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