The Scubapro MK19 EVO is an environmenttaly sealed first stage that's extremely resistant to freezing and fouling of its inner mechanism. The MK19 EVO offers a dry ambient pressure chamber that is equipped with a double spring for optimum reliability, and a LP port swivel turret to maximize hose routing options.

• Air-balanced first stage diaphragm delivers constant and effortless airflow unaffected by depth, tank pressure, or breathing rate
• Environmentally sealed system prevents water and pollutnats from fouling the inner mechanism and is extremely resistant to freezing
• Dry chamber is equipped with a double spring making it mor compact and reliable
• Two opposing high pressure ports allow the first stage to be positioned either up or down, plus provide for optimum hose/tansmitter layout
• Swivel turret comes with four High-Flow LP ports plus one axial Supr High-Low LP port to maximize hose routing options for technical diving layouts