Hollis 221 DC-3 Balanced Scuba Regulator 240.3354.07 033189

Video: Hollis DC3 212 and 221 Balanced Regulators Video Review
Mfg Part #: 240.3354.07
  • Nitrox compatible to 40% (the recreational limits of nitrox)
  • Over-balanced first stage achieves superior performance by increasing your air flow the deeper you go
  • Designed for extreme depths and cold water
  • Pneumatically balanced second stage 
  • Orthodontic mouthpiece to alleviate jaw fatigue by easing bite needed to hold regulator
  • "Diver Adjustable" venturi to prevent unwanted free-flow
  • Environmentally sealed first stage provides greater reliability, less maintenance and higher performance
  • FULL MANUFACTURER’S WARRANTY

Customer Reviews for Hollis 221 DC-3 Balanced Scuba Regulator:

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Average Customer Review: based on 2 reviews.

Rating: Like its not even there! A++
Reviewer: Paddy Jordan-Higgins
Wow, this regulator is amazing! Breathing is effortless, like its not even there! Works great at all depths, and is unfazed by cold water. Also has all the adjustments you could want!! Perfectly balanced, light-weight, super comfortable. Top of the line regulator for bargin price! Everyone should be using this reg!!

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Rating: Hollis Reg
Reviewer: Morris Tencer  -  View all my reviews
Breaths easy a very good reg at a good price

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181 out of 404 people found this review helpful.

Questions and Answers for Hollis 221 DC-3 Balanced Scuba Regulator:


  • Nahn:

    Is the regulator above a Yoke or Din? Thanks

    Greg  (Certified Scuba Instructor at Scuba.com):

    This specific regulator is a yoke. We also carry the DIN version.

  • Ernie:

    What is the difference between the Hollis 221 dc3 and the 212 dc1? Thanks

    Darrick  (Certified Scuba Instructor at Scuba.com):

    Hello Ernie, first off the DC1 212 is the higher end regulator. The DC1 has 5 low pressure ports where as the DC3 has 4 ports. The DC1 is designed for doubles so there is a high pressure port build into the top of the first stage. Where there is no port on top on the DC3. Also the DC1 swivels where the DC3 does not. If you have any other questions or would like to place an order please feel free to give us a call at 1.800.347.2822.

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