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Tek 3 Twin Set Regs

£685.00 RRP £1,022.00

Rated 4.0 out of 5
2 Reviews

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Apeks Tek 3 Twin Set Regs
Apeks Tek 3 Twin Set Regs Apeks Tek 3 Twin Set Regs Apeks Tek 3 Twin Set Regs Apeks Tek 3 Twin Set Regs Apeks Tek 3 Twin Set Regs Apeks Tek 3 Twin Set Regs Apeks Tek 3 Twin Set Regs

Tek 3 Twin Set Regs

£685.00 RRP £1,022.00

Rated 4.0 out of 5
2 Reviews

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Tek 3 Twin Set Regs

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Tek 3 Twin Set Regs

£685.00 RRP £1,022.00 In Stock

Brand: Apeks

Model: Tek 3 Twin Set Regs

SKU: 53262

Please note: This item cannot be shipped outside the European Union - learn more

The Apeks Tek3 Regulators are specifically designed for twin sets; each first stage is a one-sided mirror image of the other. Tek3 first stages are made for neater hose routing without excess ports or failure points, combined with the XTX50 which can be reversed too the Tek3 is a great package if you're building a twinset or separated for stage cylinders.


Popular with Tech Divers because of the Apeks heritage, the ability to customise and adapt your set-up and shear ruggedness of regulators that work in all environments. Apeks analysed tech divers and trimmed out any features that were superfluous. The newer 1st stage design is now forged for increased strength and allows for better hose routing.


Left and Right Handed first stages have angled ports that are made to route downward to allow for a streamlined configuration that avoids: snagging, crossing hoses and restricted access to your valves. Each first stage is over-balanced that increases performance at depth so they can deliver more gas at deeper depths if needed..


Pneumatically Balanced second stage results in a smooth easy breathe that is user adjustable at depth. The two stage progressive purge button lets you better control how much gas is purged instead of just open and closed.


Active Microbial Protection on the second stage which actively kills MRSA, protects against E-Coli, bacteria and fungi, and is also very effective against viruses, mould, yeast and algae. Molded parts are impregnated with an additive that kills infective microbes that usually survive well in wet conditions.


Large Venturi Lever operates the pre-dive mechanism that redirects airflow inside a second stage to interrupt a freeflow.


Remember to validate your warranty by visiting the manufacturers warranty registration | website


Outstanding cold water performance (below 10°C / 50°F).

Compatible with EANx40 out of the box.

First Stage:

  • Compact, solid forged body with new port positioning.
  • Unique over-balanced, diaphragm design - as the diver descends, the over-balancing feature allows the medium pressure gas in the hose to increase at a rate faster than ambient. This results in superior performance at depth.
  • 1 HP port and 3 MP ports are all angled downward.
  • An environmental dry system keeps water out of the main spring chamber thus preventing ice buildup and keeping silt and contamination out.
  • Maximum working pressure is 300 BAR (4350 psi).

Second Stage:

  • Pneumatically-balanced second stage results in smooth, easy breathing.
  • The XTX purge buttons are large and easy to operate. A 2-stage progressive purge is used - press the purge on the side for a lower flow rate, useful where more control is required such as filling lift bags etc, then press in the centre for the full effect of the purge, i.e. when regulator clearing etc.
  • The large venturi lever has a soft touch rubber grip, which makes it easier to locate and use. The lever reduces the amount of grit ingress and therefore resists any possible friction giving a smooth operation.
  • Easy-to-grip opening effort control knob keeps the diver in control.
  • The second stage is manufactured with active protection against infection as all molded parts are produced with an additive that kills MRSA, protects against E-Coli, bacteria and fungi, and is also very effective against viruses, mould, yeast and algae.
  • A silicone exhaust valve improves the breathing performance of the regulator.
  • The Comfo-bite™ mouthpiece virtually eliminates jaw-fatigue.
  • A heat exchanger (patented) which surrounds the valve mechanism, dissipates the cold caused by gas expansion while drawing in the warmth of the ambient water


  • Connection DIN only
  • Type of first stage Over-balanced diaphragm design, environmentally sealed
  • Body Type Compact, solid forged body
  • Number of HP ports 1 (7/16" UNF)
  • Number of MP ports 3 (3/8" UNF)
  • Environmental Dry Kit Standard
  • First stage exterior Chrome over marine brass
  • Orientation Convertible LH or RH
  • Coldwater Use Yes
  • Type of second stage Pneumatically balanced
  • Opening Effort Control Knob Yes
  • Integrated Venturi Lever Yes
  • Mouthpiece Comfo-bite™
  • Exhaust tee Diver Changeable - comes with 2 sets
  • Heat Exchanger for freezing resistance Yes
  • Overall work of breathing (WOB) scores Avg. 0.70 joules/liter
  • Nitrox compatible Yes to 40% O2 when new, out of the box


Box Contains:

  • 1x LH TEK3 first stage
  • 1x RH TEK3 first stage
  • 2x XTX50 second stages
  • 1x 2 meter hose
  • 1x standard length hose
  • 1x regulator necklace
  • 1x bungee necklace

Approx weight : 2.3kg

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Apeks Tek 3 Twin Set Regs - Features

FeatureProduct Specification
Adjustable Inhalation
?This feature allows the diver to adjust the inhalation setting from the set level and increase the effort required to open the 2nd stage valve to deliver air.
Adjustable Venturi
?The venturi control affects how air flows in the 2nd stage. In it's positive position the flow of gas creates a vacuum against the diapragm, helping to open the valve. In it's negative position it will divert gas back against the diaphragm helping to close the valve. It is basically used to help prevent free flowing.
Cold Water Rated
?Cold water has adverse effects on regulators and can cause some to freeze so each regulator combination must be tested during manufacturing for their performance in different water temperatures.

Cold water is defined by EN250 as below 10°C. If a regulator combination cannot meet the performance standards below 10°C then they are only suitable for warm waters.

EN250 / (EN250A >10°C)
To pass the regulator must provide at least 62.5 L/min of air at 50M depth above 10°C.
Cold & Warm Water
Environmentally sealed
?Environmentally sealed 1st stages offer greater protection against freezing when diving in cold water (below 10 degrees C)

Scubapro have a new method of cold water proofing their first stages called the eXtended Thermal Insulating System or XTIS which still allows water into the first stage but the internal parts that come into contact with the water are coated to prevent ice from forming.
First Stage
?Unbalanced regulators are affected by the pressure in the cylinder, becoming slighty harder to breathe from when the pressure starts to drop.

Balanced regulators are not affected by the cylinder pressure or depth.

Over-balanced regulators achieve unprecedented performance by increasing your air supply the deeper you go providing the best breathe for deep divers.
High Pressure Ports
?High pressure ports supply the pressure gauge and wireless transmitters for dive computers
Low Pressure Ports
?Low pressure ports supply the 2nd stages and inflator hoses
Second Stage
?An Unbalanced second stage is simply a lever operated valve that is opened and closed as the diaphragm is pulled inwards by the vacuum that is created when the diver inhales. An unbalanced second stage is affected by increased pressure at depth, slightly increasing the effort required to open the valve.

A Balanced second stage overcomes the effects of increased pressure by utilising a balancing chamber. This chamber takes some of the work away from the spring mechanism, allowing a smaller spring to be used which results in an easier breathe. As the chamber uses air to balance the valve it maintains the same resistance as the diver descends and ascends, keeping the inhalation effort the same.
Service Information
?All regulators need to be serviced to keep them in working order as the parts inside them age and wear over time and with use. Most regulators need to be serviced once a year or after 100 dives with normal recreational use to replace parts and re-balance.

Some regulators use more modern materials or mechanisms that allow them to extend the servicing interval that can save you some money in the long run.
1 Year - 100 Dives
Weight in Grams (approx)
?The weight includes the first stage (DIN fitting), hose and second stage.

We offer free standard delivery on orders over £50.

Standard delivery is £3.70 for orders under £50. You will receive your order 2 - 4 days from the date of despatch.

Next Working Day is £6.95.

For Christmas delivery information, click here Learn more about delivery

We hope you will be completely satisfied with any product purchased from Simply Scuba.

However, you can return it for any reason within 28 days from the date of despatch for a full refund (less postage costs).

For Christmas returns information, click here Learn more about returns
average rating 4.0 out of 5
Based on 2 reviews
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100% of reviewers would recommend this product to a friend
2 Reviews
Rated 4 out of 5
Review posted

Quality Kit

I'm new to twinset diving and went with the Tek 3s mainly because of previous good experience with my DST and XTX-50 over the last few years, and the evident high quality of the kit. The Tek 3s seem to perform equally well and look ready for many years' service in all conditions. As per another reviewer though, the angling of the hose connections is not perfect in terms of having sharper bends out of the ports than I would like, particularly for the alternate second stage.

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Rated 4 out of 5
Review posted

Good value for twin set dive reg set

I've had my Tek 3 set over a year & no real complaints. easy breathe at any depth. I personally don't like the Miflex hoses that came with, as these tend to be 'springy' & chaffe over standard hoses. Also (minor criticism), the hose routings from each 1st stage could be better, hoses do tend to have to bend near 90 degrees upon exit, which is not ideal. Apeks could have thought this through better for a 'purpose designed' twinset regulator set. Oh, and you can, (just about) rig them for single tank diving if required.

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