GT Steel + Master Pro 1St + 2nd Stage INT

When you need flawless breathing performance in cold water, the Cressi GT Steel + Master Pro regulator doesn't mess around.

Certified to EN 250 A < 10°C, the GT Steel 1st stage is environmentally sealed to prevent freezing and outside contamination from silt and sand.

It’s precision-machined from marine-grade stainless steel, making it exceptionally resistant to corrosion and a considerably more sustainable and eco-friendly choice than brass.

An internal heat exchanger captures heat from exhaled air to warm the internal valve mechanism, providing another barrier against freezing.

The hyper-balanced diaphragm adjusts airflow to match ambient water pressure, ensuring consistent breathing performance at depth, even as cylinder pressure decreases. Cressi's PressureSync technology maintains intermediate pressure during the breathing cycle.

There are five low-pressure ports on a swivel turret and two angled high-pressure ports on the main body, all of which provide optimal hose routing options, including sidemount specific set-ups.

The Master Pro 2nd stage is pneumatically balanced, which means it’s an easy breathe at all depths.

Marine-grade stainless steel reinforcement on the cover, with ports that neutralise dynamic water pressure, eliminate current-induced free-flow.

The adjustable Venturi has two modes: Dive for an effortless breathing experience underwater, and Pre-Dive to help avoid accidental free-flows at the surface.

Thanks to the lightweight Miflex® hose with a 360° stainless steel swivel, the Master Pro sits naturally in the mouth, reducing overall jaw tension.

• Cold Water Certified
EN 250 A < 10°C
• Compact marine-grade stainless steel 1st stage body is exceptionally strong and durable, while being more sustainable and eco-friendly than brass
• The Hyperbalanced Diaphragm INT 1st stage increases airflow as cylinder pressure drops, for a consistent breathing experience at all depths
• Environmentally sealed for cold/warm water diving - the 1st stage chamber stays dry, protecting the internal parts from freezing and contamination
• 2 7/16” HP ports UNF
5 3/8” MP ports UNF
With a rotating turret for optimal hose routing and specific sidemount setups
• Cressi’s PressureSync technology maintains Intermediate Pressure during the breathing cycle for a consistent breathing experience.
• Advanced pneumatically balanced 2nd stage reduces breathing effort at any depth, for an exceptionally smooth breathe during demanding dives
• Adjustable venturi maximises airflow in dive mode and prevents free-flows when the regulator is on the surface.
• Easy-to-grip inhalation effort adjuster allows divers to customise the breathing effort for optimal comfort and performance
• An internal heat exchanger prevents the 2nd stage from freezing for reliable performance in extreme diving conditions
• The ultra-flexible Miflex® hose and 360° swivel give you unrestricted movement and zero hose torque underwater.