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REGULATORS

ScubaVox Favourite Regulators

No single regulator is a Swiss Army Knife. They all offer certain advantages and drawbacks depending on their type of design, features, performance and cost. ScubaVox does not label any regulator as best in category. Instead, we present our favourite products from selected manufacturers, with specs sourced from the manufacturers themselves, with attached ScubaVox ratings on the abovementioned characteristics. 

Please read Very Basic Considerations When Buying a Regulator

Cressi Galaxy-R regulator
Cressi T10-SC Chromo/Galaxy Adjustable

A very high performance regulator, with the same mechanics as their T10 Master but without the double stage feature. Ideal for seasoned or professional divers who need extremely high performing equipment that is both simple and resistant, without any of the usual accessories that may get damaged.

Certification EN250/2014 for cold water
The T10-seal chamber 1st-stage is environmentally sealed, protecting it against icing in cold water and against contamination from particulate matter in silty conditions. When paired with the Master second stage, which includes an internal heat exchanger, this regulator is an excellent choice for divers exploring the most extreme cold water environments.

Specs & Features

1st-stage

  • Hyperbalanced diaphragm (Watertight chamber on T10-SC)

  • 2  7/16” HP ports UNF

  • 4  3/8” LP ports UNF

  • Operating pressure:
       INT version: 230 BAR | 3,336 PSI
       DIN version: 300 BAR | 4,351 PSI

  • Calibration pressure: 10 bar | 146 PSI

  • Body coated with Cromo finishing

  • High-capacity conical filter in chemically nickel-plated spherical bronze

  • Removable nozzle in AISI 316 steel

  • Hyperbalancing system

  • Anti-pressure drop pneumatic spring

  • Stainless steel calibration spring with micropeening treatment

  • Low-friction technopolymer slider shaft

  • Body protection in polyurethane thermoplastic

  • Quantity of air supplied: 159 cu ft/min | 4,500 l/min

  • INT version weight: 25.4 oz / 720 g

  • DIN version weight: 21.2 oz / 602 g

2nd-stage

  • Pneumatically balanced

  • Adjustable Venturi

  • Adjustable inhalation effort

  • Patented elliptical diaphragm

  • Patented low-friction lever

  • Air delivery system without injector

  • Adjuster knob coated with dual OR

  • Internal heat exchanger

  • Cap opening with Cam-lock

  • Noise-absorbing technopolymer body

  • Removable technopolymer de ector

  • Removable mechanics

  • Weight without hose: 7.1 oz | 202 g

ScubaVox Rating
4 tanks
ScubaVox +
  • Very good for cold waters

  • Comfort

  • Good global support

ScubaVox -
  • Nothing worth mentioning

Apeks MTX R regulator
Apeks MTX-R

The 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.

With an innovative first stage design that helps to prevent ice build up around the diaphragm, the MTX-R is reliable, rugged and expedition ready.

Specs & Features
  • A first of its kind, over-moulded first-stage end cap and environmental diaphragm to prevent ice build-up that could cause a free flow in extreme circumstances.

  • Forged 1st stage body gives maximum thermal performance.

  • Ribbed diaphragm clamp on the 1st stage ensures improved heat exchange in cold water conditions.

  • Angled HP ports allow for optimal hose routing and transmitter fitting.

  • Parallel turret ports allow for improved hose orientation.

  • Superb protection from impact damage on both the 1st and 2nd stage.

  • Simple to use 2nd stage with no dive adjustment controls and a reduced chance of free flow.

  • Double swivel hose for greater freedom of movement and comfort.

  • Patented heat exchanger surrounds the valve mechanism, dissipating the cold caused by gas expansion while drawing in the warmth of the ambient water.

  • Developed in accordance with the United States Navy Experimental Dive Unit extreme cold water test.

  • Tested for Octopus use to 60 metres in cold water.

Connections                     Yoke and DIN available

Type of first stage             Over-balanced diaphragm design,                                                                   environmentally sealed

Body Type                         One piece forged body

Number of HP ports         2 (7/16" UNF)

Number of MP ports        5 (3/8" UNF)

Environmental Dry Kit      Standard

First stage exterior           Satin chrome

Orientation                       Convertible LH or RH

Coldwater Use                  Yes - extreme

Type of second stage       Pneumatically balanced

Heat Exchanger                Yes

Hose type                          Braided Flexi-hose

Nitrox compatible            Yes to 40% O2 when new, out of the box /                                                       Can be O2 cleaned to 100%.

ScubaVox Rating
5 tanks
ScubaVox +
  • Durability

  • Over-moulded first-stage endcap and sealed diaphragm

  • Cracking resistance control

  • Comfort

ScubaVox -
  • Price

Hollis 200LX DCX regulator
Hollis 200LX DCX

The 200LX + DCX Regulator is Hollis' flagship regulator; designed for extreme environments. Every feature and detail of this new product provides you with the confidence of 40 years of manufacturing life support systems. The 200LX can be converted from a right-handed to left-handed hose configuration, in a manner of minutes without the use of specialty tools or calibration. The valve and every other metal component of the 200LX is “PVD” Industrial Plated, added to outperform and outlast any other regulator finish.

All LX regulators come standard with Lifetime Warranty, 2 Year Service Interval and Free Parts for Life

Specs & Features
  • Pneumatically balanced PVD plated brass valve results in smooth, easy breathing

  • Reversible demand valve, can be converted from right-handed hose configuration to left-handed hose configuration

  • Diver adjustable inhalation knob, allows diver to customize inhalation effort

  • Adjustable Dive/Pre-Dive switch: Large Venturi lever has a soft rubber grip, which makes it easy to locate and use

  • Ergonomic exhaust channels bubbles away from field of view and reduces exhaust effort

  • Improved orthodontic mouthpiece with dual color tabs

  • PVD plated stainless steel metal ring, adjustable knob and Dive/Pre-Dive end cap

  • MiFlex® braided hose

  • Din or Yoke options available

  • Paired with the new DCX 1st stage

  • Lifetime Warranty

  • Free Parts for Life

  • 2-Year Service Interval with Inspection

ScubaVox Rating
4 tanks
ScubaVox +
  • Lightweight polycarbonate design

  • Lightweight flexible braided hose

  • Sidemount compatible

  • Well built and very durable

  • Five-port swivel turret

  • Suitable for cold water 

ScubaVox -
  • Global availability of spare parts could be an issue

Zeagle F8 regulator
Zeagle F8

​One of the best performing diaphragm regulators on the market today. 

The F8 1st stage has a dry-sealed spring chamber (to stop freezing at water temperatures below 40 degrees F). All delicate parts of the 1st stage including the main spring are sealed behind the clear hydrostatic diaphragm away from the effects of salt or other contaminants in the water, making it environmentally sealed. It is very low in profile, barely extending above the tank valve, and places the low pressure hoses directly out to the sides, in a pattern preferred by many divers.

Specs & Features

1st-stage

  • Balanced diaphragm design and the environmentally sealed ambient chamber ensure top performance in any condition.

  • Redesigned environmental seal cap and yoke knob enhance ergonomics & design aesthetics.

  • Precision machined neoflon seat harder more reliable material, keeping you diving longer. 


​First Stage Materials:

  • Body: Brass

  • O-rings: Nitrile

  • Seat: Neoflon (PCTFE) 

  • HP Valve: Stainless Steel

2nd-stage

  • New inhalation diaphragm provides superior tear strength and improved response time to breathing (super soft silicone molded over a low friction disk).

  • Improved exhaust valve ensures dryness and a lower exhalation effort.

  • Seat-saving orifice, compliments of Atomic Aquatics, retracts when not in use - extending the life of the breathing tube seat. (#5,803,073)

  • Seat comprised of soft silicone molded over a metal insert to deliver the firmness required for an airtight seal while maintaining the necessary elasticity to prevent leaking.

  • Redesigned front cover and inhalation effort control knob use co-molded components that provide the necessary grip, soft touch and ease of use. Available in several color kits

  • Zirconium-plated inlet tube and heat sink for superior corrosion resistance.

  • Redesigned heat sink dramatically increases surface area, aiding in the heat exchange necessary to avoid freeze-up.

  • Co-molded silicone mouthpiece for better fit and less jaw fatigue

ScubaVox Rating
4 tanks
ScubaVox +
  • Durability

  • Lightweight

  • Comfort

ScubaVox -
  • Potential flooding of second stage when in inverted position

Atomic Aquatic T3 regulator
Atomic Aquatic T3

The T3 is Atomic Aquatics' signature regulator. Atomic Aquatics forged a new Titanium standard for the T3 making it one the finest regulators a scuba diver can own, regardless of price. The T3 delivers excellent reliability and performance. Incredibly lightweight and corrosion-resistant materials make the T3 a perfect choice for travel in exotic remote locations, where finding service could be a major problem.

Specs & Features

1st-stage

  • Precision-machined from solid Titanium alloy billet.

  • Minimalist yoke design is optimized to use the least amount of material for the lightest weight possible.

  • Atomic exclusive balanced Jet Seat high-flow piston.

  • Freeze-protected and factory-sealed to prevent outside

  • contamination from silt and sand.

  • Nitrox ready – approved for non-dedicated EAN use with mixtures up to 40%.

  • Ports: 2 HP fixed / 5 LP on swivel cap.

2nd-stage

  • situations such as surf entries or octo use.

  • like-new factory tuning and prevents damage during storage.

  • PVD coating.

  • purge.

  • depth.

  • both comfortable and durable.

  • Pneumatically-balanced poppet, high-flow case and lever design for easy breathing at all depths and tank pressures.Patented Atomic AFC – Automatic Flow Control.

  • Soft overmolded Rapid Adjustment Knob for manual detuning in special

  • Patented Atomic Titanium Seat Saving Dynamic Orifice maintains crisp

  • Hose features patented all-Titanium Atomic Comfort Swivel with Black

  • Dual material second stage cover enables entire front to be used for

  • Elliptical exhaust valve dramatically reduces exhalation effort at

  • Dual silicone comfort fit mouthpiece with tear-resistant bite tabs –

  • PVD coated metal-accent front cover ring.

ScubaVox Rating
5 tanks
ScubaVox +
  • Lightweight and durable, makes an excellent travel regulator. 

  • Spectacular Breathing Performance that's hard to beat.

  • Comfort swivel reduces jaw fatigue  

ScubaVox -
  • Price

Mares Navy regulator
Mares Navy 22 Abyss II

Mares Abyss 22 Navy II scuba regulator is made for extreme conditions, and is the only regulator to pass the U.S. Navy's strict standards for extreme cold water diving. The Mares Abyss 22 Navy II Regulator is made to handle the most extreme conditions, and is approved for use by the US Navy for extreme cold water diving. Made with a special fluoropolymer coating on the second stage, this prevents dirt particles and ice crystals from adhering - the Abyss 22 Navy II is virtually freeze-proof. The CWD kit provides protection against icing up during extreme cold water dives.

Specs & Features

1st-stage

  • Hi-flow DFC port

  • Pre-oriented ports

  • CWD oil kit

  • US Navy approved

  • Balanced Diaphragm

  • First stage weight INT: 850g

  • First stage weight DIN: 685

  • High pressure ports: 2 HP 7/16” UNF

  • Low pressure ports: 1 LP 1/2” UNF port, 3 LP 3/8” UNF

2nd-stage

  • VAD system

  • Mesh grid

  • Fluoropolymer resin finish

  • Rubber hose

  • Ideal for extreme cold water

  • Second stage weight: 269g

ScubaVox Rating
4 tanks
ScubaVox +
  • Performs extraordinarily well in all conditions 

  • Specifically well suited for cold waters 

  • Durability

ScubaVox -
  • A bit heavy

AquaLung Legend MBS regulator
Aqualung LEG3ND MBS 

The Aqua Lung LEG3ND MBS is a top-of-the-line regulator that offers exceptional breathing performance at any depth or tank pressure. It features an over-balanced diaphragm which delivers greater intermediate pressure at depth than your standard balanced system. This design helps compensate for the increased density of the gas at depth by allowing a greater volume to pass through the system, allowing much better breathing performance. Aqua Lung’s ‘Master Breathing System’ (MBS) combines both the Venturi effect and inhalation adjustment into one easy to use knob. The Aqua Lung LEG3ND MBS second stage is equipped with the ‘Aqua Lung’s Auto-Closure Device’ (ACD) system that automatically seals the regulator inlet once it has been taken off the cylinder.

Specs & Features

1st-stage

  • Overbalanced diaphragm 1st stage

  • Auto-Closure Device (ACD)     Yes

  • 2 x HP ports     

  • 4 LP ports    

  • 1st Stage Flow Rate of 1500 l/min

  • 1st Stage Weight in DIN 747 g

  • 1st Stage Weight in Yoke 957 g

  • Permanent environmental dry kit

  • Chrome over marine brass in 1st stage exterior

2nd-stage

  • Pneumatically balanced 2nd stage

  • Venturi switch adjustable breathing resistance

  • Comfo-Bite mouthpiece

  • Heat Exchanger for freezing resistance        

  • 2nd Stage Weight 227 g

  • Hose length 730 mm

  • Overall work of breathing WOB scores avg. 0.70 joules/liter

  • Nitrox compatible 40% O2                                                             

ScubaVox Rating
5 tanks
ScubaVox +
  • Comfort

  • Ease of breathing

  • 1st-stage auto closure device (ACD)

  • Exceptional cold water performance

ScubaVox -
  • Nothing worth mentioning

Scubapro MK25 A700 regulator
Scubapro EVO MK25 A700 Carbon

The Mk25 Evo A700 is Scubapro’s flagship regulator. It pairs the MK25 Evo first stage with the all-metal A700 second stage to make a system that delivers ultra-responsive, high-performance breathing, even in cold water conditions.

The A700 CARBON's main casing is full metal to take advantage of the extremely high heat exchange rate that makes it such a great choice for cold-water diving, and its front cover is handmade out of lightweight and durable carbon fibre.

Specs & Features
  • Air balanced piston 1st stage

  • 2 high pressure ports

  • Two opposing high pressure ports allow the first stage to be positioned either up or down

  • 5 low pressure ports

  • Environmentally sealed

  • Balanced 2nd stage

  • Adjustable inhalation

  • Adjustable venturi

  • Nitrox compatible

  • Cold water rated

  • Handmade carbon fiber front cover, metal casing and metal valve housing

  • Metal case construction enables the use of a larger diaphragm inside a compact casing, increasing breathing sensitivity

  • Patented ultra-freeze-resistant Extended Thermal Insulating System (XTIS)

  • Anti-freeze protection radically increases breathing reliability when diving in the most extreme water temperatures

  • Anti-freeze protection radically increases breathing reliability when diving in the most extreme water temperatures

ScubaVox Rating
5 tanks
ScubaVox +
  • Well designed and built

  • Airflow and ease of breathing

  • Excellent in cold waters

ScubaVox -
  • Nothing worth mentioning

Tusa RS681 regulator
Tusa RS-681

The RS-681 is TUSA's latest regulator that delivers superior performance and build quality in a compact lightweight design. The R-600 paired with the newly developed S-81 second stage further pushes the regulator engineering and performance envelope.

The Sequential Exhaust Assist (S.E.A.) is a revolutionary new second stage design featuring a dual exhaust system. The S.E.A. system consists of an enlarged primary and an auxiliary exhaust. The auxiliary exhaust, located on top of the S-81 elliptical case, works in conjunction with the primary to significantly decrease exhalation resistance.

Specs & Features

​1st-stage

  • Ultra-compact balanced diaphragm first stage

  • EK-600 cold water kit available for temperatures below 50°F/10°C

  • DIN-R600 conversion kit available (300bar/4350psi)

  • 2 HP and 4 LP ports

2nd-stage

  • Elliptical low-profile case design

  • S.E.A. – Sequential Exhaust Assist technology (Pat P.)

  • Venturi adjustment lever

  • Built-in moisture exchange plate

  • Attached to MIFLEX® hose for exceptional flexibility

  • Breathing Resistance Adjustment Control

  • Ortho-consciously designed mouthpiece

ScubaVox Rating
4 tanks
ScubaVox +
  • Comfort

  • Ease of breathing

ScubaVox -
  • Nothing worth mentioning

MANUFACTURERS

Some of the Leading Manufacturers of Scuba Diving Regulators

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