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1st stage
Our first regulator stages, piston or membrane, with or without turret.
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APEKS DB4+ 1st stage
This compact, heavy-duty first stage is the result of combining the proven DS4 platform with MTX technology.
APEKS MTX-R 1st stage with rotating turret and 5th MP port
Combining rugged, military-grade engineering with the super-smooth breathing for which Apeks regulators are renowned, the MTX-R is the regulator that lets you explore more. Like the entire MTX range, the MTX-R withstands continuous flow rates, even in the coldest temperatures.
APEKS MTX-RC 1st stage with rotating turret and 5th MP port
Combining rugged, military-grade engineering with the super-smooth breathing that Apeks regulators are known for, the MTX-RC is the regulator that lets you explore more. Featuring the same freeze resistant technology as the entire MTX-R range, the MTX-RC resists free flow in even the coldest temperatures.
Apeks Tek 3 Left Nitrox DIN 1st stage
The Apeks first stage, TEK3, has been designed for technical divers to best suit their specific needs and developed specifically for use on a twin cylinder.
APEKS DS4 DIN 1st stage
The APEKS XTX DS4 1st stage is widely used in technical diving to equip secondary regulators.
APEKS DS4 Nitrox DIN 1st stage
The APEKS XTX DS4 1st stage is widely used in technical diving to equip secondary regulators.
APEKS DS4 Nitrox M26 1st stage
The APEKS XTX DS4 1st stage is widely used in technical diving to equip secondary regulators.
APEKS XTX DST DIN 1st stage
This is the ideal 1st stage for all types of configuration thanks to its pivoting turret. This feature allows the hoses to be perfectly routed to avoid unwanted bending for any type of configuration, back, side, decompression block or bailout.
The Apeks XTX range of regulators maximises the concept of the modern regulator, offering a functional sophistication that enhances the use of your breathing apparatus for scuba diving.
The preferred choice of the most demanding divers, unique and unmatched in terms of performance.
The DST diaphragm first stage ensures high performance and reliability at all depths and cylinder pressures.
The small internal components reduce friction and are protected from the external environment.
Air is one of the best thermal insulators. The dry chamber system, adopted on Apeks regulators approved for use in cold waters, is based on this factor and provides the best possible thermal protection. The regulator mechanism is totally isolated from the external environment and maintains its efficiency unchanged over time. It guarantees high performance and reliability, regardless of the depth and pressure of the cylinders.
APEKS XTX DST Nitrox DIN 1st stage
This is the ideal 1st stage for all types of configuration thanks to its pivoting turret. This feature allows the hoses to be perfectly routed to avoid unwanted bending for any type of configuration, back, side, decompression block or bailout.
APEKS XTX DST Nitrox M26 1st stage
This is the ideal 1st stage for all types of configuration thanks to its pivoting turret. This feature allows the hoses to be perfectly routed to avoid unwanted bending for any type of configuration, back, side, decompression block or bailout.
APEKS XTX FSR 1st stage
APEK's top of the range regulators with a blend of style and high performance, every detail of this product has been carefully designed to deliver the highest quality regulator.
POSEIDON CYKLON CLASSIC 1st stage
Introduced in 1958, this was the first produced regulator for using only one-hose and set a new standard for diving regulators. The standard diaphragm regulator allows water into the mainspring chamber so that the diaphragm can perform transmission of pressure changes.
POSEIDON JETSTREAM CLASSIC 1st stage
The Jetstream Classic first stage has been replaced by the even better Xstream first stage on our kits. However, many of you still got older versions so manufacturing still continues. No re-release, no re-design, just the same old workhorse as the day it was first introduced.
POSEIDON XSTREAM DEEP G5/8" 1st stage
The objective; design the most reliable first stage in the world.
POSEIDON XSTREAM DEEP G5/8" 1st stage
The objective; design the most reliable first stage in the world.
POSEIDON XSTREAM DEEP G5/8" 1st stage
The objective; design the most reliable first stage in the world.
POSEIDON XSTREAM OXYGEN M26x2 1st stage
The objective; design the most reliable first stage in the world.
POSEIDON XSTREAM OXYGEN M26x2 1st stage
The objective; design the most reliable first stage in the world.
POSEIDON XSTREAM OXYGEN M26x2 1st stage
The objective; design the most reliable first stage in the world.
The F30 is a balanced diaphragm first stage with a 5th low pressure outlet on the rotating turret head.
The two high pressure outlets complete the features of this versatile regulator, recommended for use in cold or contaminated water
This first stage is particularly versatile and suitable for optimising hose routing with a twinset, in sidemount and bailout / stage configurations.
Regulator Scubatec F40 is a 300b 1st stage with balanced membrane, body is chrome-plated brass and sandblasted.
Ideal as a primary source with a greater flow and ease of dispensing.
The F40 diaphragm in the first stage completely isolates the regulator core from the external environment, ensuring greater reliability and making it particularly suitable for diving in icy or turbid water.
Regulator Scubatec F6 1st stage. include a built-in over-pressure valve.
Ideal for the inflation of your drysuit.
Regulator Scubatec F40 is a 300b 1st stage with balanced membrane, body is chrome-plated brass and sandblasted.
Ideal as a primary source with a greater flow and ease of dispensing.
Apeks Tek 3 First Stage Pack
The Apeks first stage, TEK3, has been designed for technical divers to best suit their specific needs and developed specifically for use on a twin cylinder.