Apeks & Aqualung First Stages

1st Stage regulator for dry suit with over pressure valve and hose.

This compact first stage regulator by Apeks has been embraced by the technical diving community worldwide. This DS4 first stage boasts an overbalanced, diaphragm design which allows the medium pressure gas within the hose to increase at a rate faster than the ambient as the diver descends. This makes for a superior performance at depth. Additionally, an environmental dry system keeps the main spring chamber free of water, thus preventing ice buildup and keeping silt and contamination from seeping in.

The DS4 first-stage regulator boasts a unique overbalanced, diaphragm design that is built for oxygen percentages between 0 – 100%. As the diver descends, its over-balancing feature allows the medium pressure gas in the hose to increase at a rate faster than the ambient, resulting in superior performance at depth. 

Additionally, 2 HP ports and 4 MP ports are angled for optimum hose routing, whilst an environmental dry system keeps water out of the main spring chamber, thus preventing ice buildup as well as keeping silt and contamination out. 

The Apeks DST first stage regulator is ideal as a stage cylinder regulator due to its swivelling turret. It boasts an overbalanced, diaphragm design which allows the medium pressure gas within the hose to increase at a rate faster than the ambient as the diver descends. This makes for a superior performance at depth. Additionally, an environmental dry system keeps the main spring chamber free of water, thus preventing ice buildup and keeping silt and contamination from seeping in.

The Apeks DST first stage regulator is ideal as a stage cylinder regulator due to its swivelling turret. It boasts an overbalanced, diaphragm design which allows the medium pressure gas within the hose to increase at a rate faster than the ambient as the diver descends. This makes for a superior performance at depth. Additionally, an environmental dry system keeps the main spring chamber free of water, thus preventing ice buildup and keeping silt and contamination from seeping in.

Go warm, go cold, go deep, go anywhere. Enjoy control in the extreme with the MTX-RC scuba diving regulator. Combining rugged, military grade engineering with the super-smooth breathing experience that Apeks regulators are renowned for, the MTX-RC is the regulator that lets you explore more.

Featuring the same freeze-resistant technology enjoyed by the whole MTX-R range, the MTX-RC resists free-flows in even the coldest temperatures, while offering the user the additional flexibility to adjust the settings for a more comfortable breathing experience in less extreme environments.

All this is achieved using an innovative first stage design that protects the diving regulator from freezing and a full set of user controls on the second stage to adjust the breathing performance based on the diver’s individual needs.

Upon purchase, a tactical style messenger bag is included to keep your regulators safe on your travels. Perfectly sized for a laptop, it can also double-up as your new work bag!

The forged first stage body gives maximum thermal performance while a ribbed diaphragm clamp on the first stage further ensures improved heat exchange in cold water conditions.

• Forged 1st stage body for maximum thermal performance.
• Ribbed diaphragm clamp on 1st stage to ensure improved heat exchange in cold water conditions.
• Angled (2) HP ports allow for optimal hose routing and transmitter fitting.
• 5 intermediate pressure ports (with fifth covered with protective white number while not in use)
• Parallel turret ports allow for improved hose orientation.
• Superb protection from impact damage

The military has been using Apeks regulators for over 20 years and now Apeks have put that military expertise into a brand new military specification regulator, exclusively for the consumer market. The “M” in MTX stands for Military and the “R” for recreational version and the new MTX-R is based on the MTX, a regulator that was developed in accordance with the United States Navy Experimental Dive Unit extreme cold water test.

Innovations in design mean that the MTX-R regulator performs in almost freezing water at a depth of over 60 metres, something that very few other regulators on the consumer market can boast. Tested for octopus use to 60m in cold water, this regulator set from Apeks is truly unique. The MTX-R is not just an extremely reliable regulator but also very easy to service “ in the field”.

The TEK3 regulator by Apeks, is designed to be used in twin cylinder configuration. Utilizing all of the tried-and-tested technology expected in Apeks’s range of first stage regulators, the TEK3 doesn’t disappoint.

The TEK3 regulator by Apeks, is designed to be used in twin cylinder configuration. Utilizing all of the tried-and-tested technology expected in Apeks’s range of first stage regulators, the TEK3 doesn’t disappoint. 

The Apeks US4 regulator is a high-quality piece of equipment designed for warm water diving. This excellent breathing regulator features a no swivel turret is balance to offer good performance.