Apeks AT (with US4 1st Stage) Regulator

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RRP £209.00
Availability: In Stock

Free UK Delivery

Apeks fully balanced AT 1st stage and US4 2nd stage regulator set provides uncompromised warm water performance for a fraction of the price you’d expect to pay.

Free UK Delivery

Apeks fully balanced AT 1st stage and US4 2nd stage regulator set provides uncompromised warm water performance for a fraction of the price you’d expect to pay.

Apeks AT (with US4 1st Stage) Regulator

Apeks fully balanced AT 1st stage and US4 2nd stage regulator set provides uncompromised warm water performance for a fraction of the price you’d expect to pay. Using the same technology found in their more expensive ATX regulator the AT delivers clear, effortless breathing thanks to its balanced design. Unlike the ATX regulators, the AT and US4 are unsealed meaning its specifically made for warm water above 10*C. This benefit of this is that the AT can be incredibly compact and light, making it an ideal inexpensive regulator for traveling and flying.


  • Warm Water Performance - The Apeks US4 1st stage uses the same technology as their high-performance DS4 1st stage ensuring the US4 performs far beyond what it’s affordable price tag would suggest. The US4 however, is unsealed making it suitable for warm water diving in temperatures above 10*C.
  • Travel Ready - The Apeks US4 is one of the lightest and most compact in their range making it ideal for holidays to warmer climates without compromising on features or performance. You can connect your full range of dive gear.
  • Fully Balanced 1st and 2nd Stage - When your tank begins to run low on air and pressure breathing becomes more difficult, requiring effort to draw air. The AT and US4 regulator set is fully balanced counteracting this effect, meaning breathing is effortless and crystal clear from the moment to get in the water till the end of your dive.
  • Easy Hose Management - With four low pressure and two high pressure ports you can easily attach all of your dive gear and route your hoses efficiently.
    • 1 High Pressure Port (7/16" UNF)
    • 4 Low Pressure Ports (3/8" UNF)
  • Venturi Lever - The large venturi level is easy to locate and use and any time and allows you to control how much breathing effort is required to receive air.
  • Zero Jaw-Fatigue - The Apeks AT 2nd stage comes with a Comfo-Bite mouthpiece. These super comfortable mouthpieces feature a bridge that sits across your palate and supports your 2nd stage, eliminating jaw-fatigue.

Who is the Apeks AT (with US4 1st Stage) Regulator For?

Apeks entry level regulator shows that you don’t need to empty your wallet to get levels of performance that, only a few years ago would have been considered high-end. Being unsealed the AT and US4 is made for warm water diving and shouldn’t be used in water temperatures below 10*C. Because of that however, it’s incredibly light making it perfect for bringing with you on holiday, and once you’ve get in the water it’s compact nature makes it that much more comfortable to dive with.

Who are Apeks?

Well known for their design and manufacturing of high quality breathing apparatus, Apeks supply more UK divers with regulators than any other dive manufacturer. Apeks has grown to become one of the benchmarks of the industry with superior standards in both engineering and design. Innovative development of not only their regulators but other diving equipment, Apeks offer a lifetime guarantee on all of their equipment, a testimony to the reliability and quality.

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UK Delivery

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