GT Steel + Master Pro + Master 1St + 2nd Stage + Octopus DIN

The Cressi GT Steel + Master Pro + Master Octo regulator is for discerning divers who know exactly what they want.

The GT Steel DIN 1st stage is beautifully machined from marine-grade 316 stainless steel. Designed to last a lifetime, stainless steel resists corrosion, even after years of use in salt water.

It is also a more eco-considered option than traditional plated-brass first stages because there's no chemical finishing process.

Five low-pressure ports on a swivel turret, one positioned on top for sidemount rigs, and two angled high-pressure ports on the main body keep hose routing clean and your profile streamlined.

The GT Steel is environmentally sealed to prevent freezing and contamination, and the hyper-balanced diaphragm adjusts airflow to match ambient water pressure, maintaining consistent breathing performance regardless of depth, breathing rate or cylinder pressure.

The Master Pro 2nd-stage and Master Octo complete this flagship regulator. The housings are made of medical-grade plastic that inhibits bacterial growth caused by saliva and moisture inside the regulator. The material is also highly resistant to saltwater degradation, so the surfaces remain smooth and easy to clean.

Stainless-steel inserts on the front covers have precisely positioned ports that neutralise dynamic water pressure and eliminate current-induced free flow.

Both have an adjustable Venturi, and the Master Pro has a large, easy-to-grip breathing-effort adjuster, allowing divers to fine-tune breathing resistance.

• Cold Water Certified EN 250 A < 10°C
• Compact stainless steel DIN 1st stage body is exceptionally durable and won't corrode, while being more sustainable and eco-friendly than brass
• The Hyperbalanced Diaphragm DIN 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, prevents free-flows at the surface in pre-dive mode, and can be set to any position between the two
• Large inhalation effort adjuster is easy to use with thick gloves and allows the diver to personalise the breathing experience for optimal comfort