Scubapro MK25 EVO / S620 Ti + S270 Octopus

Features:

• Air balanced flow-through piston in a chrome plated brass body provides constant and effortless airflow unaffected by depth, tank pressure, or breathing rate.
• Patented XTIS (Extended thermal Insulating system) thermally insulates the inner mechanism from the environment, improving cold-water resistance and delaying ice formation in extreme cold-water conditions without compromising breathing performance.
• Anti-freeze protection radically increases breathing reliability when diving in the most extreme water temperatures.
• Two opposing high pressure ports allow the first stage to be positioned either up or down.
• Four high-flow and one axial super high-flow low pressure ports on a swivel turret maximize hose routing options.
• External intermediate pressure adjustment enables technicians to fine-tune performance quickly and easily.
• Air balanced second stage valve smoothes out the inhalation effort at varying depths and supply pressures.
• Second stage’s rugged reinforced technopolymer case and front cover with stainless steel frame looks good plus is able to withstand years of aggressive diving.
• Full titanium barrel is rugged, anti-corrosion and lightweight for long-term reliability.
• Large diaphragm fits inside a more compact second stage casing for maximum breathing sensitivity.
• User controls include an easy-grip diver-adjustable inhalation effort knob and Venturi-Initiated Vacuum Assist (VIVA) lever.
• The compact Hi-Flow mouthpiece, exclusive to the S620 Ti, is mounted on an enlarged mouthpiece pipe to improve airflow as well as mouth comfort.

Specs:

• 2nd Stage Design: Balanced
• 1st Stage Type: Piston
• 2nd Stage Series: S Series
• Water Temp: Warm, Cold, Temperate
• Connector Type: INT and DIN
• Nitrox Mix: Up to 40%
• HP Ports: 2
• LP Ports: 5
• 1st Stage Material: Chrome-Plated Brass
• 2nd Stage Material: Titanium Components
• Weight: 2.579 lb
• Adjustable 2nd Stage: Yes
• 2nd Stage Valve Housing Material: Titanium

Features S270 Octopus:

• Air-balanced valve smoothes out the inhalation effort when diving at varying depths and supply pressures
• Lightweight casing, made of a fiberglass-reinforced nylon core and a special PU outer layer, is extremely durable plus helps reduce jaw fatigue and improve diving comfort
• Technopolymer plastic barrel with a metal thread and a balanced valve helps save weight and provides a surface that ice crystals can't grab onto when diving in extreme cold water
• Dive/predive switch prevents freeflows when not being used
• Compact and efficient exhaust tee minimises exhalation effort
• Compact Hi-Flow mouthpiece is comfortable, made with FDA-approved silicone and features a large cross-section to maximise airflow
• High-viz yellow front cover stands out, making it easy to spot when needed
• High-viz yellow super-flow hose is 39in/1m long with an oversized bore that allows more air to flow on each inhalation
• CE certified to the latest EN250A European Standards for all diving conditions, including extreme cold water.