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Demonstration Video:
Video: Hollis DC3 212 and 221 Balanced Regulators Video Review

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Hollis 221 DC-3 Balanced Scuba Regulator

Customer reviews see below


  • 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


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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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174 out of 393 people found this review helpful.

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