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About Hollis DC2/212 Regulator with 30" (76.2 cm) Maxflex Hose

The Hollis DC2 1st Stage Regulator is a Compact and Streamlined Over-Balanced Diaphragm Regulator Design that provides progressively greater intermediate pressure as depth and gas density increases for superior gas delivery under the most extreme conditions. The diaphragm membrane transmits the pressure changes to the internal mechanism eliminating the need for the surrounding water to enter the intricate mechanism. The benefit of this type of first stage design is that none of the internal parts are exposed to contaminants such as salt, sand, chlorine or pool acids. These environmental contaminants cause corrosion and mineral deposits to form on the internal mechanism deteriorating regulator performance. The standard Diaphragm Regulator does allow water into the Mainspring Chamber so that the Diaphragm can perform this Transmission of Pressure Changes.

With the DC2 there is a Secondary Environmental Diaphragm Membrane that Seals off the Spring Chamber keeping the First Stage completely Sealed off from the Environment adding a Second-Layer of Corrosion Resistance and the Environmental Sealing Prevents Icing of the First Stage, allowing the Regulator to withstand the rigorous CE standard for coldwater performance.

The First Stage has 4 Low Pressure Ports (LP) with 3/8" Threads and 2 High Pressure Port (HP) with 7/16" Threads. The DC2 First Stage Regulator is manufactured from Marine-Grade Chrome Plated Brass. The Compact & Streamlined Design provides the Ultimate Control over the Internal Air Path for superior air delivery. The DC2 is Nitrox compatible to 40% out of the box. The Regulator weighs 35.2 oz (998 g).

The Hollis 212 Second Stage Regulator is a Pneumatically Balanced Demand Valve Design with a Patented Dynamic Adjustment that once set Automatically Maintains Inhalation Effort throughout the Dive by Compensating for Depth Changes. The Hollis 212 Second Stages also has an Adjustable Venturi System. This simple Dive/Pre-Dive Switch allows the diver to Adjust Inhalation Effort so the Second Stage won't Free-Flow during shore entries or long surface swims.

All Controls are Easy Grip Controls for Precise Adjustments even while Wearing Gloves. The Hollis 212 Second Stage Housing is manufactured from Durable ABS/Polycarbonate. Regulator also comes equipped with a Patented Orthodontic Silicone Rubber Mouthpiece for Comfort and Reduced Jaw Fatigue. Regulator features a 30" (76.2 cm) MaxFlex Hose. The MaxFlex Hose is a lightweight, flexible, braided hose designed to outperform and outlive traditional rubber hoses. The Hollis DC2/212 Regulator is available in a Yoke or DIN Cylinder Connection, comes with a CD Owner's Manual and is covered by a 24 month limited warranty.

The Hollis DC2/212 Regulator with 30" (76.2 cm) Maxflex Hose is commonly used for Cold Water, Extreme Depths, Warm Water and more. The Hollis DC2/212 Regulator with 30" (76.2 cm) Maxflex Hose is most used by customers who consider themselves to be a Advanced among others. The Hollis DC2/212 Regulator with 30" (76.2 cm) Maxflex Hose is popular because customers like the following qualities of the Hollis DC2/212 Regulator with 30" (76.2 cm) Maxflex Hose: Adjustable, Comfortable, Effortless breathing, Nitrox Compatible.

Warranty Information

This product has a limited warranty of 24 months.

www.hollis.com/support/warranty/
(510) 729-5110

Hollis DC2/212 Regulator with 30" (76.2 cm) Maxflex Hose Features

  • Meets Rigorous CE Standard for Coldwater Performance
  • CD Owner's Manual
  • 2 Year Limited Warranty
  • First Stage:
  • Over-Balanced Diaphragm Regulator Design
  • Provides Progressively Greater Intermediate Pressure with Increased Depth and Gas Density
  • Superior Gas Delivery Under Most Extreme Conditions
  • Dual Diaphragm Design: Completely Seals Internal Components from Environment
  • Environmental Sealing Prevents Icing
  • 4 Low Pressure Ports (LP) with 3/8" Threads
  • 2 High Pressure Port (HP) with 7/16" Threads
  • Material: Forged Marine-Grade Chrome Plated Brass
  • Compact & Streamlined Design
  • Ultimate Control Over Internal Air Path for Superior Air Delivery
  • Nitrox Compatible to 40% Out-of-the-Box
  • 2 Choices: Yoke or DIN Cylinder Connection
  • Weight: 35.2 oz (998 g)
  • Second Stage:
  • Lightweight ABS/Polycarbonate Housing
  • Patented Silicone Rubber Orthodontic Mouthpiece
  • Mouthpiece Provides Comfort and Reduced Jaw Fatigue
  • Pneumatically Balanced Demand Valve Design
  • Patented Dynamic Adjustment Automatically Maintains Inhalation Effort
  • Dynamic Adjustment: Compensates for Depth Changes
  • Adjustable Venturi System (A.V.S.)
  • AVS: Simple Dive/Pre-Dive Switch Adjust Inhalation Effort
  • AVS: Prevents Free-Flow During Shore Entries or Long Surface Swims
  • All Controls: Easy Grip Controls for Precise Adjustments Even while Wearing Gloves
  • 30" (76.2 cm) 3/8" Threaded Maxflex Hose
  • Lghtweight, Flexible, Braided Hose
  • Designed to Outperform and Outlive Traditional Rubber Hoses

Hollis DC2/212 Regulator with 30" (76.2 cm) Maxflex Hose Specifications

1'St Stage Type
Over-Balanced Diaphragm
Lp Ports
4
Hp Ports
2
Adjustable 2'Nd Stage
Yes
Nitrox Compatible
Yes Up To 40%
2'Nd Stage Type
Pneumatically Balanced Demand Valve
Materials
First Stage: Forged Marine Grade Chromed Brass, Second Stage Housing: Abs/Polycarbonate, Mouthpiece: Silicone Rubber
Hose Thread
3/8"
Hose Length
30" (76.2 Cm)
Total Weight
First Stage Only: 35.2 Oz (998 G)
Weight [with packaging]
Din: 3 lb,
Yoke: 3.5 lb
Mfr #
SKU
HLSDC2212

DC2/212 Regulator with 30" (76.2 cm) Maxflex Hose Customer Reviews

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Hollis GearHollis DC2/212 Regulator with 30" (76.2 cm) Maxflex Hose
 
4.8

(based on 8 reviews)

Ratings Distribution

  • 5 Stars

     

    (6)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Adjustable (7)
  • Comfortable (7)
  • Effortless breathing (7)
  • Nitrox compatible (7)

Cons

    Best Uses

    • Extreme depths (5)
    • Cold water (4)
    • Warm water (4)
      • Reviewer Profile:
      • Advanced (5)
      • Diving Type:
      • Open water diving (7), Wreck diving (6), Night diving (5), Outdoor professional (3)
      • Was this a gift?:
      • No (6)

    Reviewed by 8 customers

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    Displaying reviews 1-5

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    4.0

    Nice!

    By bpiz

    from Carolina Beach

    About Me Casual/ Recreational

    Verified Buyer

    Pros

    • Adjustable
    • Comfortable
    • Effortless Breathing
    • Nitrox Compatible

    Cons

    • Poor Design

    Best Uses

      Comments about Hollis Gear Hollis DC2/212 Regulator with 30" (76.2 cm) Maxflex Hose:

      Overall this is a nice combo. The Hyperflex hose is surprisingly light weight. I don't like the shape of the first stage. I had to find a thin wrench to fit in some narrow spaces. Otherwise no buyer's remorse here.

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

      Comment on this review

       
      4.0

      Great 1st/2nd stage package

      By The bear

      from australia

      About Me Advanced

      Verified Buyer

      Pros

      • Adjustable
      • Comfortable
      • Effortless Breathing
      • Nitrox Compatible

      Cons

        Best Uses

        • Extreme Depths
        • Warm Water

        Comments about Hollis Gear Hollis DC2/212 Regulator with 30" (76.2 cm) Maxflex Hose:

        Best 2nd stage I have use. It does seem to get easier to breath the deeper I went. (I did test this to 60 M on multiple dives and worked like a dream. Love the Max flex hose, dont even know it there. Now looking to change all my hoses to Maxflex

        • Diving Type:
        • Night Diving, Wreck Diving
        • Was this a gift?:
        • No

        Comment on this review

         
        5.0

        Quality Product, great price

        By Mark

        from miami, fl

        About Me Advanced

        Verified Buyer

        Pros

          Cons

            Best Uses

              Comments about Hollis Gear Hollis DC2/212 Regulator with 30" (76.2 cm) Maxflex Hose:

              Quality product

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

              Comment on this review

               
              5.0

              i would buy this again

              By no fish

              from florence sc

              About Me Advanced

              See all my reviews

              Verified Buyer

              Pros

              • Adjustable
              • Comfortable
              • Effortless Breathing
              • Nitrox Compatible

              Cons

                Best Uses

                • Warm Water

                Comments about Hollis Gear Hollis DC2/212 Regulator with 30" (76.2 cm) Maxflex Hose:

                breaths easy at 10 feet to 100 feet

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

                Comment on this review

                 
                5.0

                Hollis DC2 212 Regulator

                By Diver Manny

                from Downey, CA

                About Me Advanced

                Verified Buyer

                Pros

                • Adjustable
                • Comfortable
                • Effortless Breathing
                • Nitrox Compatible

                Cons

                  Best Uses

                  • Cold Water
                  • Extreme Depths

                  Comments about Hollis Gear Hollis DC2/212 Regulator with 30" (76.2 cm) Maxflex Hose:

                  High end materials used with excellent craftsmanship and attention to details.

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

                  Comment on this review

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                  Q&A

                  Questions & Answers Powered by TurnTo®

                  Questions about this item:

                  Shopper  Why Did You Choose This?
                  MICHAEL J M  Price, Reviews, performance. Very satisfied- best breathing regulator I've ever used.
                  Shopper  What is the main differences between the DC1 and the DC2, both are on the same price range, DC2 seems more futuristic but any other differences regarding performance, features, etc.. ?
                  THOMAS P  The main difference is that the DC1 can swivel while the DC2 doesn't. It depends what you want out of diving. If you want to run doubles or sidemount, having a first stage that can swivel will make routing hoses a little easier. However, that's usually based on what you want. I have the DC2 and have no issues with it. This regulator performs very well. Also, some might argue that a first stage that swivels can be a potential failure point. Again, it's up to you and your diving beliefs. Best of luck. Can't go wrong with the Hollis regs.
                  Shopper  Does this connect to DIN or Yoke?
                  JACOB C  The DC2 212 I have is a yoke. When I asked Leisure Pro they said they only carry the yoke version. Hollis does list the DC2 212 on there web site as available in both configurations
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