Hollis

Hollis 212 + DC3 (DIN)

The same sealed DC3 first stage as Hollis's entry-level combo, paired with the fully diver-adjustable 212 second stage.

Environmentally sealed, cold-water rated

Sealed first stage keeps water and ice crystals out of the internal mechanism, the standard for diving below 50°F/10°C.

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Released—
First stagediaphragm
BalancedYes
Environmentally sealedYes
Cold-water ratedYes
ConnectionDIN
Max pressure—
HP / LP ports2 / 4
Adjustable 2nd stageYes
Weight1219g
Nitrox-ready (EAN40)Yes
Octo includedNo

"HP / LP ports" is the number of high-pressure and low-pressure ports on the first stage, which caps how many accessories (transmitter, SPG, inflator, second second-stage) you can run at once.

Pros
  • 212 second stage adds true diver-adjustable airflow and venturi control on top of the automatic "Dynamic Adjustment" system
  • Same environmentally sealed, over-balanced DC3 first stage that carries Hollis's coldwater EN250:2000 rating
  • Dynamic Adjustment automatically maintains consistent inhalation effort through the dive without diver input
Cons
  • Heavier and pricier than the entry-level 100LX/DC3 pairing
  • Smaller current retailer footprint than the 100LX combo, can be harder to find in stock
  • Also sold in yoke, confirm the listing matches this DIN spec

Hollis sells the DC3 first stage across several second-stage pairings, and the 212 is the step up from the entry-level 100LX combo for divers who want manual fine-tuning on top of the automatic Dynamic Adjustment system. It’s aimed at divers who’ve outgrown a basic reg but don’t need Hollis’s full technical DC3 lineup.