Scubapro

Scubapro MK19 EVO/G260 (Yoke)

A sealed diaphragm first stage in yoke trim paired with Scubapro's biggest second stage, built for divers who want G260 breathing feel without committing to a DIN-only piston set.

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.

Scubapro MK19 EVO/G260 (Yoke)
4.1Comparison Score
$1049
Buy on AmazonBuy on Scuba.com
Released2020
First stagediaphragm
BalancedYes
Environmentally sealedYes
Cold-water ratedYes
Connectionyoke
Max pressure232 bar
HP / LP ports2 / 5
Adjustable 2nd stageYes
Weight1270g
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
  • Environmentally sealed, double-spring dry chamber diaphragm design resists freeze-up and fouling in cold or silty water
  • Shares the G260 second stage with the flagship MK25 EVO/G260 combo, same largest-in-class casing and diaphragm, same reversible left/right hose routing
  • Two opposing HP ports let the first stage sit facing up or down for cleaner transmitter routing
Cons
  • Sold here in INT/yoke trim, DIN divers should look at the MK25 EVO or MK17 EVO combos instead
  • Diaphragm first stage is a different design family from Scubapro's piston-based MK25 EVO, so parts and service history aren't interchangeable
  • No octopus included in the base set, budget for a second second stage separately
Diver community sentiment
Mostly positive

Across Scubaboard threads and an independent long-term review, divers consistently praise the MK19 EVO/G260 for smooth, consistent breathing at depth and in cold water, crediting the environmentally sealed diaphragm first stage and swivel turret for reliable performance in silty, sandy, or near-freezing conditions. It's widely viewed as a durable, "nearly indestructible" mid-to-high-end system favored by tech and cold-water divers, with the G260 second stage regarded as one of Scubapro's best. Complaints are minor: some divers find the MK19 first stage heavier/bulkier than lighter alternatives, and one thread documented an isolated case of high inhalation resistance resolved via readjustment.

Scubaboard: MK19 cold-water testing anecdotesScubaboard: MK17 EVO vs MK19 EVO comparisonDiveOtter: MK19/G260 long-term review

Summarized from public forum discussion (Scubaboard, Reddit, and similar), not a survey we ran ourselves. See the linked threads for the original conversations.

The MK19 EVO/G260 pairs a fully sealed diaphragm first stage with Scubapro’s familiar G260 second stage, the same second stage used on the piston-based MK25 EVO/G260 combo. It’s a natural pick for yoke divers who want the G260’s breathing feel and reversible hose routing without stepping up to a DIN-only piston system.