For compact comfortable breathing performance in cold or silty water, the MK17 EVO 2/S620 Ti regulator system simply can’t be beat. The MK17 EVO 2 is a sealed diaphragm first stage with a dry chamber based on a twin spring layout and two HP ports at 15-degree angle to make hose routing easier. Small and lightweight, the S620 Ti delivers excellent performance providing effortless airflow under all dive conditions.

MK17 EVO 2 (FIRST STAGE)

AIR-BALANCED DIAPHRAGM DESIGN

Delivers consistent and effortless airflow, regardless of depth, tank pressure, or breathing rate.

SEALED DRY CHAMBER

Keeps out cold water with an environmentally sealed dual diaphragm system. The rib is designed to enhance heat exchange, making the first stage cold water-proof.

TWO HIGH-PRESSURE PORTS

Set on a 15-degree angle for convenient hose routing options.

S620Ti (SECOND STAGE)

COMPACT SIZE

Makes it more comfortable without sacrificing breathing performance.

VERSATILE AND ADJUSTABLE

Equipped with full user adjustments, including a high[1]grip inhalation effort control knob & VIVA switch.

ENGINEERED EXHAUST TEE

Divers bubbles while helping to substantially lower work of breathing.

HIGH FLOW MOUTHPIECE

Increases airflow and improves comfort

CE CERTIFIED

Adheres to the latest EN250A European Standards for all diving conditions, including extreme cold water.

The S270 Octopus is tough, reliable, and easy to use. Its air-balanced design can be counted on to deliver top-notch breathing performance when you need it most.

• 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 wate