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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.
A robust dry chamber with a reinforced diaphragm prevents ice build-up while protecting the regulator from shock.
An integral heat exchanger around the diaphragm increases the temperature of the gas inside the first stage.
The classic shape fits most configurations: single cylinder, dual cylinder and decompression block.
The large heat exchange diaphragm support increases the gas temperature in the first stage for improved cold water performance.
Unique overcompensated diaphragm design: During descent, overcompensation allows air at medium pressure in the hose to flow faster than at ambient pressure. This results in better performance at depth.
The DB4+ 1st stage is the APEKS XL4+ regulator, a compact and lightweight 1st and 2nd stage regulator assembly, suitable for diving in all environments, including cold water. Its design and low weight help to reduce jaw fatigue on long dives. The XL4+ is also an ideal stage regulator, perfect for the exploration diver with a large amount of equipment.
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.
Can be used in very cold temperatures (below 10°C). The innovative overmoulded end cap, diaphragm and forged body of the first stage ensure optimum thermal performance.
During descent, overcompensation allows air at medium pressure in the hose to flow faster than at ambient pressure. This results in better performance at depth.
Equipped with a forged rotating turret with parallel medium pressure outlets for better hose orientation. The fifth 3/8" UNF medium pressure outlet has a protective cap for when not in use. The HP outlets are angled for optimal hose organization and easy connection of emitters.
Unique over-compensated diaphragm design, as the diver descends, the over-balancing feature allows the medium pressure gas in the hose to increase at a faster rate than ambient air. The result is superior performance at depth.
Go hot, go cold, go deep, go anywhere. Enjoy extreme control with the MTX-R first stage.
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.
Can be used in very cold temperatures (below 10°C). The innovative overmoulded end cap, diaphragm and forged body of the first stage ensure optimum thermal performance.
During descent, overcompensation allows air at medium pressure in the hose to flow faster than at ambient pressure. This results in better performance at depth.
Equipped with a forged rotating turret with parallel medium pressure outlets for better hose orientation. The fifth 3/8" UNF medium pressure outlet has a protective cap for when not in use. The HP outlets are angled for optimal hose organization and easy connection of emitters.
Unique over-compensated diaphragm design, as the diver descends, the over-balancing feature allows the medium pressure gas in the hose to increase at a faster rate than ambient air. The result is superior performance at depth.
Go warm, go cold, go deep, go anywhere. Enjoy extreme control with the MTX-RC first stage.
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.
The TEK3 is based on the proven construction of Apeks diaphragm first stages. It is designed specifically for a dual back cylinder configuration to meet the specific pipe routing requirements of the first stages.
All ports are located flush so that the hoses connected to them extend from the first stage in one direction only.
The TEK3 is available in two versions - left and right.The first stages allow maximum access to the valves.
Apeks Tek 3 Left Nitrox M26 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.
The TEK3 is based on the proven construction of Apeks diaphragm first stages. It is designed specifically for a dual back cylinder configuration to meet the specific pipe routing requirements of the first stages.
All ports are located flush so that the hoses connected to them extend from the first stage in one direction only.
The TEK3 is available in two versions - left and right.The first stages allow maximum access to the valves.
Apeks Tek 3 Right 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.
The TEK3 is based on the proven construction of Apeks diaphragm first stages. It is designed specifically for a dual back cylinder configuration to meet the specific pipe routing requirements of the first stages.
All ports are located flush so that the hoses connected to them extend from the first stage in one direction only.
The TEK3 is available in two versions - left and right.The first stages allow maximum access to the valves.
Apeks Tek 3 Right Nitrox M26 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.
The TEK3 is based on the proven construction of Apeks diaphragm first stages. It is designed specifically for a dual back cylinder configuration to meet the specific pipe routing requirements of the first stages.
All ports are located flush so that the hoses connected to them extend from the first stage in one direction only.
The TEK3 is available in two versions - left and right.The first stages allow maximum access to the valves.
APEKS DS4 DIN 1st stage
The APEKS XTX DS4 1st stage is widely used in technical diving to equip secondary regulators.
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 performance.
The DS4 DIN first stage diaphragm guarantees 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 depth and cylinder pressure.
APEKS DS4 Nitrox DIN 1st stage
The APEKS XTX DS4 1st stage is widely used in technical diving to equip secondary regulators.
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 performance.
The DS4 DIN first stage diaphragm guarantees 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 depth and cylinder pressure.
APEKS DS4 Nitrox M26 1st stage
The APEKS XTX DS4 1st stage is widely used in technical diving to equip secondary regulators.
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 performance.
The DS4 DIN first stage diaphragm guarantees 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 depth and cylinder pressure.
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.
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 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.
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 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.
The Apeks XTX range of regulators maximises the concept of the modern regulator, offering a decidedly 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 performance.
The FSR DIN first stage diaphragm guarantees 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 ensures 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.
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.
Membrane balanced, 4 LP and 2 HP outputs oriented 30° and 50° down respectively.
Lamellar radiator head.
Version with Viton O-ring.
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.
The TEK3 is based on the proven construction of Apeks diaphragm first stages. It is designed specifically for a dual back cylinder configuration to meet the specific pipe routing requirements of the first stages.
All ports are located flush so that the hoses connected to them extend from the first stage in one direction only.
The TEK3 is available in two versions - left and right.The first stages allow maximum access to the valves.