DGX Custom - DGX Gears FIRST/D6 O2/Stage Reg Package

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The DGX O2 Deco Regulator is suitable for Oxygen Service without the need for additional preparation. A value priced but quality flow-by piston DIN first stage and balanced adjustable second stage that delivers improved performance in appropriate deco depths for 50% to 100% oxygen.
This regulator has the typical BSP G5/8 DIN connector that will fit 200 Bar and 300 Bar SCUBA valves. It will NOT fit the M26X2 Nitrox/Oxygen valve outlet mandated ONLY in the European Union by the EN 144-3:2003 standard.

DGX Custom - DGX Gears FIRST/D6 O2/Stage Reg Package

Complete Package with White PSI SPG
Complete Package with White PSI SPG DGX Gears FIRST DIN Regulator D6 adjustable second stage
  • Compact lightweight decompression regulator
  • Piston DIN 1st stage w/ balanced adjustable 2nd
  • Three LP 3/8-inch ports - one HP 7/16-inch port
  • Includes Mini-SPG, S/S bolt snap, DIN cap
  • Assembled, tested and shipped to you ready-to-dive

The DGX Gears FIRST/D6 O2/Stage Reg Package is assembled using oxygen compatible materials and lubricants, and is suitable for Oxygen Service without the need for additional preparation. The DGX Deco Regulator is a compact, lightweight option for an accelerated decompression regulator. A value priced but quality flow-by piston DIN first stage and balanced adjustable second stage that delivers improved performance in appropriate deco depths for 50% to 100% oxygen.

The DGX FIRST is a compact first stage flow-by piston regulator with an IP of 120 and the typical BSP G5/8 DIN connector that will fit 200 and 300 Bar valves. This first stage provides unusually good performance for such an inexpensive system. The DGX D6 second stage is pneumatically balanced for excellent breathing. Internally it contains a chrome plated brass air barrel for performance and durability. The black soft touch silicone front cover for easy purge and along with a scalloped metal user adjustable breathing resistance knob. It also offers the venturi (Dive /Pre-Dive) switch for better flow control when needed and to reduce free flow upon initial entry. The included C-Bite+ mouthpiece provides comfort and helps to reduces jaw fatigue on longer deco obligations.

The package includes a Mini-SPG in choice of PSI or BAR, S/S bolt snap with hose clip retainer, DIN cap, and comes assembled by Dive Gear Express with a green {40 in | 1 m} hose. The braided flex hose makes hose management easy and comes standard with the DGX O2 Deco Regulator setup.

Our suggested service interval for all DGX Gears regulators is every two years or one hundred dives. Any competent service tech will have no issues with service of the DGX Gears regulator models. There is nothing unique about DGX Gears regulators in terms of service requirements and needs no special equipment beyond that found on the typical regulator technician bench. We believe our customers also have the right-to-repair, so we publish detailed service manuals and we sell without restriction all service parts and periodic service kits for the DGX Gears brand regulators. See the Product Attachments tab of the periodic service kits for service manuals including IPB and torque values on the DGX Gears FIRST Service Parts Kit, and the DGX Gears D6 Service Parts Kit (select 2nd stage).

More Information
Brand DGX Gears
SKU PK-742004
Weight 4.750000

Customer Reviews

5 out of 5 stars
7 Reviews
86% of customers
recommend this product
5 stars 7 (100%)
4 stars 0 (0%)
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Verified Buyer
Quality built regulator
Jul 9, 2022
Works great for me as designed. The quality is very good and I have had no issues at all using as a deco reg. I am buying more to use for students. I own other O2 regs from the leading brands and this works as good if not better than those costing 3 times more.
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Verified Buyer
This reg package performs/breaths as ...
Apr 24, 2022
This reg package performs/breaths as good as any refs on the market in my opinion. I’m about to buy another set. Well worth it.
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Verified Buyer
I don't have one bad ...
Jun 4, 2021
I don't have one bad thing to say about this deco reg package. Easy breathing, sturdy, great workmanship. I will buy another.
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Verified Buyer
I really like the first ...
Nov 10, 2019
I really like the first stage....nothing fancy, just seems very sturdy. Button SPG couple be better. One threads catches the threads perfectly thus making it readable. The other button SPG ends up upside down. Not sure if putting another O-ring on the button SPG threads would appropriately “re-clock” the button SPG. The Deep 6 second stage is much nicer than I anticipated. I’m very impressed with the quality and the breathing performance. Agree with another reviewer...the green hose retainer is itty bitty. It’s made for a “Hello, Kitty” deco bottle. I use AL80s.....manly bottles. It would be nice if one could choose between the green MiFlex hoses (provided) and green rubber hoses (much preferred for me). Overall, very nice kit. I am so impressed with the Deep 6 regs I may re-assign them to twinset duty and move my Dive Rite XT regs to deco duty.
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Verified Buyer
Top Seller in the making
Jun 22, 2018
I chose the DGX O2 Deco Regulator Package over the (Dive Rite O2 Deco Regulator Package) for obvious reasons. Build quality is better. Comes with a pre-dive lever you can use with or without gloves. 2nd stage is balanced. Able to use it with 50 to 100% O2. Although my optimum deco gas is between 32 and 80%; compared to other deco regs with similar features, this one meets the right price. The negative aspect: don't assume I'm using a smaller deco bottle, hence, offer hose strap options. A green color on the bite accents of the bite tab would also give another indication of its use.
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Verified Buyer
Works great
Jun 19, 2018
Great performance for the value. My O2 schedule can get up to around 40 min and it’s nice to be comfortable. The only thing I notice is the first stage seems heavy.
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Verified Buyer
Great customer service
Jan 11, 2018
Product works perfectly and customer service is top notch
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Tek Tip Warning Image WARNING
According to our suppliers, this product is compatible with oxygen and factory cleaned for use with oxygen. Nonetheless, the 'clean state' of this equipment applies only prior to initial use. Thereafter, periodic inspection and cleaning are a necessity. You must meticulously follow the recommendations of the US Department of Transportation (DOT), Compressed Gas Association (CGA), and other federal/state/local agencies, plus your dive training agency for equipment maintenance, handling, storage, labeling, filling, transport and use of compressed gases. Oxygen-related fires and explosions can result in serious injury or death. Ultimately, you must make the final decision to assume all risks associated with the use of any compressed gases, including those in excess of 23.5% oxygen.


Regulators and Required-stop Accelerated Decompression

Open-circuit technical divers often switch to breathing pure oxygen or a very rich advanced Nitrox mix such as 50%, to substantially reduce their required-stop times as compared to decompressing using just their bottom mix, called accelerated decompression. The depth where the gas switch occurs is relatively shallow, typically {20 fsw | 6 msw} for 100% oxygen or { 70 fsw | 21 msw} for 50% Nitrox. For profiles with very deep and/or very long bottom times, the diver can further reduce their required-stop times with multiple gas switches during the ascent, sometimes called multi-staged accelerated decompression (not to be confused with regulator stages). The depths where the first gas switch occurs in multi-staged deco is relatively deep, typically {100 fsw | 30 msw} using a sport Nitrox mixture and for extreme exposures often the first switch is around {190 fsw | 57 msw} using normoxic Trimix.

Divers on decompression stops are normally at rest and decompression gas regulators are typically configured with only one second stage regulator. Required-stop decompression in general is not an activity that demands high-performance regulators, although it can be in physical overhead environments where the diver must also continue swimming towards an exit. The shallower accelerated decompression depths when using very oxygen rich breathing gases are not at all demanding of regulator performance, almost any regulator would do in theory, but the very rich decompression gas requires the regulator be specifically designated as suitable for use with pure oxygen. Unfortunately, most manufacturers only describe their regulators as suitable for Nitrox mixtures to 40% maximum.

Dive Gear Express offers several specialty decompression regulators all designed and qualified for use with breathing gas mixtures containing up to 100% oxygen, but each suitable for use in differing maximum depth ranges based on their performance. The Dive Rite O2 Regulator is suitable to a maximum depth of { 50 fsw | 15 msw}. The DGX Gears O2 Regulator is suitable to a depth of {130 fsw | 40 msw}. The Mares O2/Stage Regulators are suitable for use to a depth of {160 fsw | 50 msw}. The Dive Rite O2/Stage Regulator and the Apeks O2/Stage Regulator depth limits exceed {330 fsw | 100 msw}. For reasons of familiarity and ease of maintenance irrespective of cost, divers will sometimes choose to use deco regulator versions similar their primary even though their performance exceeds the demands of required-stop accelerated decompression.

Regardless of the capabilities of your regulator, the maximum depth of your dive is also limited by the amount of oxygen in the breathing gas and the partial pressure of oxygen at that depth.