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$429.95

About Aqua Lung Legend ACD Regulator

The New Line of Legend Regulators Crafts the Future with Innovative Technology and Sleek Cosmetic Appeal The new Legends are Smaller and Lighter making for a more Comfortable Dive Whether you are Jet-Setting to an Exotic Location or Diving your Local Spot, the Legend will give you the Confidence to Dive like a Pro and look like a Rock Star Be a Leader Be an Icon Be a Legend

The Legend ACD First Stage is an Over-Balanced Diaphragm Design As the Diver Descends, the Intermediate Pressure coming out of the First Stage Increases at a Rate Faster than Ambient Pressure The Over-Balancing Compensates for the Increased Density of the Breathing Gas at Depth The Balanced Diaphragm, Chrome Plated Marine Brass First Stage Regulator is inherently Environmentally Sealed The benefit of this type of First Stage design is that none of the Delicate Internal Parts are Exposed-to-Contaminants such as Salt, Sand, Chlorine or Pool Acids These Environmental Contaminants can cause Corrosion and Mineral Deposits to form on the Internal Mechanism Deteriorating Regulator Performance A Diaphragm First Stage Regulator requires Less-Maintenance then Regulators that allow the Contaminates to enter the Internal Mechanism

The Diaphragm of the First Stage Regulator forms a Membrane Barrier between the Environment and the Internal Mechanism The Diaphragm Membrane Transmits Pressure Changes to the Mechanism keeping the Internal Parts cleaner and Contaminant Free The Legend ACD takes this Protection One-Step-Further with the Auto-Closure Devise (ACD) The ACD keeps Corrosive Water out of the First Stage thereby ensuring Top Performance The ACD Seals the Regulator's Inlet Fitting, as soon as the Regulator is Removed-from-the-Cylinder Valve This will keep Water and Contaminants Out-of-the-Regulator's First Stage during Rinsing and Storage It allows the First Stage to Maintain Peak Performance Over-Time, will Retain-its-Internal Lubrication-Longer and makes the First Stage Safer for Nitrox Use

When the Regulator is Clamped onto the Scuba Cylinder, the Inlet Crown Retracts thereby Exposing the Gas Inlet in the Center Valve Post This provides a Steady Flow of Breathing Gas to the First Stage without any Restrictions The Legend's unique Forged Body is Triangular T-Shaped for better Hose Routing The T-Shape uses Less-Brass making it more-Compact The First Stage Regulator has 4 Low Pressure Ports 3/8" UNF Thread and 2 High Pressure Ports 7/16 UNF Thread The Ports are angled for Optimum Hose Configuration The Legend Regulator is Compatible with Nitrox Mixtures up to 40% O2 Out-of-the-Box

The Legend ACD Second Stage Regulator is a Pneumatically Balanced Design A Pneumatically Balanced design delivers Gas at a Constant Pressure so Work-of-Breathing remains Effortless Independent of Depth or Tank Pressure In Short a Pneumatically-Balanced Second Stage results in Superior Ease-of-Breathing The Second Stage is equipped with an Easy-to-Grip Venturi Lever that Stops unwanted Free-Flow when the Regulator is Out-of-your-Mouth The Legend ACD Second Stage comes with Aqua Lung's Comfo-Bite Mouthpiece which Reduces Jaw Fatigue The Regulator Housing is manufactured from a Durable Techno-Polymer with an Over-Molded Front Cover The Mouthpiece, Exhaust Valve and Diaphragm are Silicone The Legend ACD Regulator is equipped with a 3/8" Threaded 29" (73 7 cm) Braided Aqua-Flex Low Pressure Hose, weighing less than 5 oz (141 75 g), provides Flexibility, Comfort and Excellent Pack-Ability The Legend ACD Regulator weighs 42 9 oz (1,216 g), comes with an Owner's Manual and is covered by a Limited Lifetime Warranty

The Aqua Lung Legend ACD Regulator is commonly used for Cold Water, Extreme Depths, Warm Water and more. The Aqua Lung Legend ACD Regulator is popular because customers like the following qualities of the Aqua Lung Legend ACD Regulator: Adjustable, Comfortable, Effortless breathing, Nitrox Compatible.

Warranty Information

This product has a limited lifetime warranty.


Aqua Lung Legend ACD Regulator Features

  • Legend Regulators Crafts the Future with Innovative Technology
  • New Legends are Smaller and Lighter for More Comfortable Diving
  • Dive Like a Pro and Look Like a Rock Star: Be a Leader, Be an Icon, Be a Legend
  • High Performance Regulator
  • 3/8" Threaded 29" (73.7 cm) Braided Aqua-Flex Low Pressure Hose
  • Hose: Provides Flexibility, Comfort and Excellent Pack-Ability
  • Compatible with Nitrox Mixtures Up to 40% O2 Out-of-the-Box
  • Weight: 42.9 oz (1,216 g)
  • Owner's Manual
  • Limited Lifetime Warranty
  • First Stage:
  • Over-Balanced Diaphragm Design
  • Over-Balancing Compensates for Increased Density of Breathing Gas at Depth
  • Inherently Environmentally Sealed
  • Delicate Internal Parts Not Exposed-to-Contaminants
  • Requires Less-Maintenance
  • Aqua Lung's Auto-Closure Devise (ACD):
    ACD Keeps Corrosive Water and Contaminants Out-of-the-First Stage when Rinsing and in Storage
    Ensures Top Performance
    Seals Regulator's Inlet Fitting when Removed-from-the-Cylinder Valve
    Retain Internal Lubrication-Longer
    Safer for Nitrox Use
  • Material: Chrome Plated Marine Brass
  • Triangular T-Shape Body: Less Brass, More Compact and Better Hose Routing
  • 4 Low Pressure Ports 3/8"-24 UNF Thread
  • 2 High Pressure Ports 7/16"-20 UNF Thread
  • Angled LP & HP Ports for Optimum Hose Configuration
  • Second Stage:
  • Pneumatically Balanced Demand Valve Design
  • Easy-to-Grip Venturi Lever Stops Free-Flow
  • Comfo-Bite Mouthpiece: Reduces Jaw Fatigue
  • Materials:
    Housing: Durable Techno-Polymer
    Cover: Over-Molded
    Mouthpiece, Exhaust Valve and Diaphragm: Silicone

Aqua Lung Legend ACD Regulator Specifications

1'St Stage Type
Over-Balanced Diaphragm
Lp Ports
4, Thread 3/8" Unf
Hp Ports
2, Thread 7/16" Unf
Adjustable 2'Nd Stage
Yes, Venturi Lever
2'Nd Stage Type
Pneumatically Balanced Demand Valve
Materials
First Stage: Chrome Plated Brass, Second Stage: Housing Techno-Polymer, Mouthpiece, Exhaust Valve And Diaphragm: Silicone
Hose Thread
3/8"
Hose Length
29" (73.7 Cm)
Total Weight
42.9 Oz (1,216 G)
Weight [with packaging]
3.95 lb

Aqua Lung Legend ACD Regulator Customer Reviews

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Aqualung Legend ACD Regulator
 
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 (8)
  • Comfortable (8)
  • Nitrox compatible (7)
  • Effortless breathing (6)

Cons

No Cons

Best Uses

  • Extreme depths (7)
  • Warm water (6)
  • Cold water (5)
    • Reviewer Profile:
    • Advanced diver (3)
    • Diving Type:
    • Open water diving (5), Drift diving (4), Night diving (4), Wreck diving (4), Cave diving (3)

Reviewed by 8 customers

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(0 of 1 customers found this review helpful)

 
5.0

great price!

By bradshawtx

from Texas

About Me Casual/ Recreational

Pros

  • Adjustable
  • Comfortable
  • Effortless Breathing
  • Nitrox Compatible

Cons

    Best Uses

    • Extreme Depths
    • Warm Water

    Comments about Aqualung Legend ACD Regulator:

    I ordered 1st and 2nd stage, gauges and backup 2nd stage. Everything came promptly, in good shape and the pricing is excellent. I haven't used them yet but they are put together and ready for our dive in June.

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

    Comment on this review

    (0 of 1 customers found this review helpful)

     
    4.0

    Great 1st and 2nd stage

    By Josh

    from Fl

    About Me Casual/ Recreational

    Pros

    • Adjustable
    • Comfortable
    • Effortless Breathing
    • Nitrox Compatible

    Cons

      Best Uses

      • Cold Water
      • Extreme Depths
      • Warm Water

      Comments about Aqualung Legend ACD Regulator:

      This is a great regulator, I can dive multiple times and never get jaw fatigue. Great breathing from 2'-50+ down.

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

      Comment on this review

      (4 of 4 customers found this review helpful)

       
      5.0

      outstanding unit

      By Rick55

      from Tri-Cities , WA

      About Me Professional

      Verified Reviewer

      Pros

      • Adjustable
      • Comfortable
      • Effortless Breathing
      • Nitrox Compatible

      Cons

        Best Uses

        • Cold Water
        • Extreme Depths

        Comments about Aqualung Legend ACD Regulator:

        Aqualung or U.S. Divers as it use to be known as, this company invented scuba diving, Jock Cousteau and the company he formed, people today do not relalise how much this company has contributed to diving, when I started diving in 75 most of the companies were not even around back then, I have owned and used alot of equipment since then and to me Aqualung has always made the best equipment, the legend is one of there shinning examples!!! I would give it 10 flags but your rating only goes to 5....

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

        Comment on this review

         
        5.0

        easy breathing

        By happy58900

        from brisbane aust

        About Me Advanced

        See all my reviews

        Verified Buyer

        Pros

        • Adjustable
        • Comfortable
        • Effortless Breathing
        • Nitrox Compatible

        Cons

          Best Uses

          • Extreme Depths
          • Warm Water

          Comments about Aqualung Legend ACD Regulator:

          [...]

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

          Comment on this review

          (0 of 2 customers found this review helpful)

           
          5.0

          "A very slick looking regulator"

          By Stu

          from Adelaide, Australia

          About Me Advanced Diver

          Verified Buyer

          Pros

          • Adjustable
          • Comfortable
          • Effortless Breathing
          • Nitrox Compatible

          Cons

            Best Uses

            • Cold Water
            • Extreme Depths

            Comments about Aqualung Legend ACD Regulator:

            This Reg was purchased to twin up for Cave diving to match my existing regulator

            • Diving Type:
            • Cave Diving, Wreck Diving

            Comment on this review

            Displaying reviews 1-5

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            Q&A

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            Questions about this item:

            Shopper  Why Did You Choose This?
            zachary a  light weight reg, works well but you might want to change out the mouthpiece
            Shopper  is this new or refurbished?
            Frank L  This is a new item.
            Shopper  I'm trying to decide between this and the Atomic Z2 Any suggestions?
            SHERWIN G  I like the atomic z2
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