Every so often one of Scubapro's regulator's enters the "LEGENDARY" category. The old MK10-G250was a work horse and set the bar back in the early 90's. The Air 2 revolutionized the octopus. The current version of the MK20-S600 has entered that realm. Once it got there, Scubapro started having fun. They offered a Titanium version, a Tech Black version, a GOLD 50th Anniversary version and the latest, the Deep Blue.
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