Scubapro’s Mark 25/S-600 has been restyled for 2013 and is now available in four versions. Each model offers its own unique<br />cosmetics, coatings, and construction materials, but they all have one thing in common—awesome performance. In ScubaLab<br />breathing machine tests the Mark 25/S-600 has consistently outpaced all regulators, past and present, in sheer muscle reg performance. And in the ocean it breathes like a dream. <br />
