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About Mares MR22 Abyss Regulator (old style)

The MR 22 diaphragm first stage featuring the DFC (Dynamic Flow Control) system and a replaceable HP seat connector. The high pressure poppet was designed for a "2 year or 200 dives" service interval; double the high pressure seat life standard!

Compact body, in a modern and smart style, it is made of hot-forged nickel-plated and chromed brass. It is fitted with a preferential intermediate pressure port for connection to the main second stage, plus 3 other LP ports and 2 HP ports. The latter are inclined at a 45º angle to allow a more rational layout of hoses. And ergonomic exhaust tee ensures superior hydrodynamic performance and reduced exhalation resistance.

Abyss second stage, with its V.A.D. system, is made of nickel- and chrome-plated brass. This material offers a number of benefits, absolute ruggedness thinner walls, hence compact dimensions obtained without using smaller diameter diaphragms, this result in reduced water drag. The Abyss has an anti-freeze function, which is enhanced by the "radiator action" of the metal inlet and housing.

The contoured fin opening design of the second stage cover reduces the pressure of water flowing onto the regulators diaphragm and minimizes free-flow. Even in a strong current it eliminates the need for a knob to de-tune your air delivery system advance technology through basic physics. The cover is made of techno-polymer, a lightweight and impact-resistant material. The large manual purge button is easy to find and operate. The mouthpiece is made of soft hypoallergenic silicone: limiting jaw fatigue and offering a secure fit even after very long dives.

MR22 offers the unique Mares patented V.A.D. (Vortex Assisted Design) system. This system allows smooth breathing at all depths. Its operating principle is very simple; the air coming from the hose passes through the second stage downstream valve and is conveyed directly to the mouthpiece through the by-pass tube. Within the mouthpiece, the air flow undergoes a "vortex" effect. Whenever this swirl effect occurs, the core of the vortex creates a low pressure area. This low pressure helps keep the second stage diaphragm down while inhaling, thus increasing the regulator sensitivity. Hose is 1/2" Threaded High Flow hose and is 29.5" (75 cm) in length. Mares MR22 Abyss comes with a limited lifetime warranty.

The Mares MR22 Abyss Regulator (old style) is commonly used for Cold Water, Extreme Depths, Recreation, Warm Water and more. The Mares MR22 Abyss Regulator (old style) is most used by customers who consider themselves to be a Advanced Diver, Divemaster, Recreational Diver among others. The Mares MR22 Abyss Regulator (old style) is popular because customers like the following qualities of the Mares MR22 Abyss Regulator (old style): Adjustable, Comfortable, Effortless breathing, Nitrox Compatible.

Warranty Information

This product has a limited lifetime warranty.

www.mares.com
(800) 874-3236

Mares MR22 Abyss Regulator (old style) Features

  • First Stage Features:
  • Balanced Diaphragm
  • Light Weight
  • DFC System
  • Tri-Material Valve with Superior Durability
  • Chrome Plated Brass
  • 4 LP and 2 HP Ports
  • Limited Lifetime Warranty
  • Second Stage Features:
  • Made of Nickel and Chrome-Plated Brass
  • Vortex Assist Design (V.A.D.) System
  • Compact and Ergonomic Exhaust Tee
  • Soft Hypoallergenic Silicone Mouthpiece

Mares MR22 Abyss Regulator (old style) Specifications

1'St Stage Type
Balanced Diaphragm
2'Nd Stage Type
Downstream Demand
Material
Chromed Brass, Polyurethane, Techno-Polymer
Hose Threads
1/2"
Hose Length
29.5" (75 Cm)
Total Weight
43.4 Oz (1,230 G)
Weight [with packaging]
3.8 lb

MR22 Abyss Regulator (old style) Customer Reviews

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Mares MR22 Abyss Regulator (old style)
 
4.7

(based on 34 reviews)

Ratings Distribution

  • 5 Stars

     

    (23)

  • 4 Stars

     

    (11)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Comfortable (27)
  • Effortless breathing (23)
  • Nitrox compatible (22)
  • Adjustable (5)

Cons

    Best Uses

    • Warm water (26)
    • Cold water (22)
    • Extreme depths (14)
    • Recreation (9)
    • Professional (3)
      • Reviewer Profile:
      • Recreational diver (13), Advanced diver (9), Divemaster (4), Beginner (3)
      • Diving Type:
      • Open water diving (15), Drift diving (8), Night diving (8), Wreck diving (8), Outdoor professional (3)

    Reviewed by 34 customers

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    Displaying reviews 1-5

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    (4 of 4 customers found this review helpful)

     
    4.0

    My Old Faithful

    By NeilQue

    from The Philippines

    About Me Professional

    Pros

    • Bulletproof Construction
    • Effortless Breathing
    • Highly Responsive
    • Nitrox Compatible
    • No dry mouth
    • Solid Performer At Depth

    Cons

    • 12" DFC Port
    • Fixed Turret
    • Heavy On Land
    • Poor Mouthpiece
    • Surface Free Flows

    Best Uses

    • Advanced Diving
    • Contaminated water
    • Warm Water

    Comments about Mares MR22 Abyss Regulator (old style):

    Bought mine used in 2006, still diving strong and reliably in 2012. Been with me on hundreds of dives. I missed a year of maintenance servicing but encountered no problems.

    What I like:
    -Solid performer, steady at 145ft as at 30ft.
    -Minimal breathing effort
    -With an Allen Wrench, you can adjust the first stage pressure on a boat if needed. (better leave this one to the technician though)
    -Was my "upgrade regulator", been my faithful companion from Open Water all the way to Open Water Scuba Instructor. Minimal maintenance and could take abuse!
    -All metal construction prevents dry mouth. Essential when on liveaboards doing 21 dives in just a few days.

    What I dislike:
    -Mouthpiece. Puts pressure on your molars not canines. Replacing with the Mares Jax will solve this.
    -1/2" port for second stage. This wasnt a problem until I took specialty courses and switched to long hoses and miflex hoses. not many LDS carry the adapter. Don't believe guys doing it right, using an adapter (more o-rings) won't endanger you in any way. mine had no problems at all
    -Fixed turret. However, for single tank diving, the hose routings are perfect and uncluttered. New divers will find it easier to assemble gear than one with a rotating turret (my OW Students would always fumble with that rotating turret during training, with second stages ending up on the left side.)

    So what happened? why did my old faithful workhorse end up with dad? who btw is still smiling since he got "upgraded' from his mares MR12.

    I now dive sidemount. as a primary reg (left tank), the fixed hose routings bend the hoses significantly, I don't think they'd last long. My Course Director also pointed out the advantage of the rotating turret on the primary tank on sidemount which allows better flexibility.

    My MISTAKE was to hurriedly order 2 regs with a rotating turret.

    Lo and behold, after paying for the Scubapro MK25's i discovered the MR22 would make a great secondary (right-side) tank on sidemount. Rotate the first stage top to 9'oclock position, switch HP hose to left HP port and voila, your long hose can neatly be tucked in. Don't forget that 3/8" adapter though!

    Compared to the MK25/A700, the MR22 Old Style Abyss is close! I would say the Abyss breathes a tad bit easier, however, the A700 is much more steady and PRECISE (for a lack of a better word). The Abyss has no knobs, simple.

    At the discounted price, THIS IS A STEAL. GO FOR IT!

    Happy diving and Godbless!

    • Diving Type:
    • Deep diving, Drift Diving, Night Diving, Open Water Diving, Rescue Diving, Sidemount Diving, Wreck Diving
    • Was this a gift?:
    • No

    Comment on this review

     
    4.0

    Solid reg

    By soev

    from Vancouver, Canada

    About Me Advanced

    Verified Buyer

    Pros

    • Effortless Breathing

    Cons

    • Causes Jaw Fatigue

    Best Uses

    • Cold Water
    • Warm Water

    Comments about Mares MR22 Abyss Regulator (old style):

    Good sturdy construction and easy breathing. Need a screw to unscrew the faceplate is one drawback. Otherwise great stuff.

    • Diving Type:
    • Open Water Diving
    • Was this a gift?:
    • No

    Comment on this review

     
    5.0

    great

    By shannon

    from mass

    About Me Beginner

    Verified Buyer

    Pros

    • Comfortable
    • Effortless Breathing

    Cons

    • None

    Best Uses

    • Cold Water

    Comments about Mares MR22 Abyss Regulator (old style):

    cold water dives
    effortless breathing

    • Diving Type:
    • Open Water Diving

    Comment on this review

    (1 of 2 customers found this review helpful)

     
    4.0

    Worth the money

    By skibucks

    from cleveland, oh

    About Me Advanced

    Pros

    • Comfortable
    • Effortless Breathing
    • Nitrox Compatible

    Cons

      Best Uses

      • Cold Water
      • Extreme Depths
      • Warm Water

      Comments about Mares MR22 Abyss Regulator (old style):

      I picked up two of these for my son and I for a trip to Bonaire. We were both pleased with how little effort it took to draw a breath, purge, and use. It was flawless. I would recommend it to anyone.

      • Diving Type:
      • Drift Diving, Open Water Diving

      Comment on this review

      (2 of 2 customers found this review helpful)

       
      5.0

      Simplicit beauty

      By adiver

      from Rockland County, NY

      About Me Advanced Diver

      Verified Buyer

      Pros

      • Comfortable
      • Easy breathing below
      • Effortless Breathing
      • Nitrox Compatible

      Cons

        Best Uses

        • Cold Water
        • Extreme Depths
        • Warm Water

        Comments about Mares MR22 Abyss Regulator (old style):

        Its reliable.
        Breathing is effortless in warm water, cold water and at depth.
        Its comfortable

        • Diving Type:
        • Drift Diving, Night Diving, Wreck Diving

        Comment on this review

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        Q&A

        Questions & Answers Powered by TurnTo®

        Questions about this item:

        Rodney M  Does the MR22 abyss come ready for cold water or do you need the cold water kit for it?
        DONALD B  You need the cold water kit. I installed the kit on mine. How much difference it makes, I don't know. It's a pretty solid regulator as it is. I just like to hedge my bets when diving cold.
        Shopper  Does it only come with a yoke 1st stage, or does it have a din adapter that comes with it?
        WILLIAM B  Mine only came with a yolk style and no adapter, most dive shops have the adapters if you need them though.
        Shopper  Is this reg balanced?
        LeisurePro S  Yes, this is a balanced diaphragm design.
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