With the MK17 EVO 2/C370 you have a compact and lightweight regulator system ready to explore dive locales all over the world. The MK17 EVO 2 is more compact and lighter weight than its MK17 EVO predecessor and the MK19 EVO, thanks to a NEW forged body, dry chamber with a twin spring layout for increased reliability and compactness. Small but powerful when it comes to air delivery, the C370 offers convenient user controls include a diver-adjustable inhalation effort knob, a coaxial dive/pre-dive lever and a large, easy-to-activate purge button. The MK17 EVO2/C370 is the regulator system of choice for any dive bag and any recreational dive scenario.