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RG-4100F Yoke + RG-3100S + RG-2100S +PG-450

Top of range, Diaphragm Regulator

Save $58.30

Balanced Diaphragm Reg

1st Stage
2nd Stage


Store policies

The Aquatec RG-4100F is a balanced diaphragm design 1st stage, offering a consistent airflow independent of depth/tank pressure.  This is a compact 1st stage featuring two high-pressure ports, and four low-pressure ports; with an intermediate pressure of 9.5~10.2 BAR. 

Designed for cold water use, and manufactured from chrome plated brass with stainless steel springs for long life.

Pair with an Aquatec Primary and Secondary 2nd stage, and a brass pressure gauge (BAR); NOTE regulator does not come with a power inflator hose.

Read our blog post about Balanced 1st Stages HERE


Specific References


RG-4100F Diagram

RG-4100F Diagram

Download (2.18MB)

RG-2100S Diagram

RG-2100S Diagram

Download (1.83MB)

RG-3100S Diagram

RG-3100S Diagram

Download (1.61MB)