Hollis DC3 212 and 221 Balanced Regulators Video Review

This demonstration video goes over the features of the Hollis DC3 212 & 221 Balanced Regulator. The DC3 212 Regulator comes with an over-balanced first stage achieves superior performance by increasing your air flow the deeper you go and a pneumatically balanced second stage. The DC3 212 Regulator features an environmentally sealed first stage provides greater reliability, less maintenance and higher performance. The 212 second stage comes with a "diver adjustable" air flow and a "diver adjustable" venturi to prevent unwanted free-flow. Whereas the 221 second stage comes only with a "diver adjustable" venturi to prevent unwanted free-flow. There are easy grip controls even while wearing gloves.

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Buy the Hollis 221 DC-3 Balanced Regulator, DIN

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Hollis 221 DC-3 Balanced Regulator, DIN

Eligible for Free Standard Shipping on orders over $25

  • For cylinders fitted with a DIN valve only (for cylinders fitted with a standard yoke valve order adapter 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
Hollis 321 Balanced Octo Add $159.95


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