Eco-friendly, the world's only regulator made of stainless steel. Atomic Aquatics has once again created a market-first diving product - the ST1 regulator made of stainless steel. The first stage is perfectly machined from a special type 316 stainless steel, which is twice as strong as brass and as corrosion-resistant as titanium.

Many environmental experts classify stainless steel as the "green" metal of the future. Stainless steel does not require any additional protective processes, such as chromium or nickel plating, which can be harmful to the environment. Stainless steel is 100% recyclable. The second stage contains only the titanium components found in the T3 or B2 models. All metal components of the second stage are made of titanium - lightweight and corrosion-resistant. The ST1 is ready for use with breathing gas mixtures up to 40% Nitrox. The only piston first stage completely sealed from the water, increasing its resistance to freezing and protecting it from contaminants. The first stage is made of type 316 stainless steel, twice as durable as brass and with corrosion resistance similar to titanium. The compact first stage has a 5-port low-pressure turret and a unique "Jet Seat" piston. An exceptionally efficient breathing system: ease of inhalation even at great depths and a suitable breathing rate with a natural and comfortable delivery of the breathing mixture. An exceptionally comfortable swivel hose for the second stage - the Comfort Swivel, the only second stage of its kind (swivel hose) - allows for use regardless of the second stage's position. The head allows the regulator to adapt to the slightest movement - to increase breathing comfort. Made of polished Type 316 stainless steel. Standard on models: B2, ST1 (stainless steel), Z3 (chrome-plated brass), and T3 (titanium). The convenient "swivel" hose can also be added to any Atomic Aquatics second stage. The Comfort Swivel provides free hose movement within a 30-degree range of motion. (Patent No. 7,188,869).

Product Parameters:

• AFC (Automatic Flow Control) - an Atomic patent
• Automatic Flow Control (AFC): Just enjoy the dive. No unnecessary knobs or buttons - the regulator automatically adjusts during the dive. It is the first and only regulator that responds to depth by using a Venturi nozzle, which automatically balances performance and stability (Pat. #5,678,541). A computer-designed vane inside the mouthpiece changes position depending on the depth to ensure continuous, natural, and effortless breathing at all depths.
• Titanium lever - ensures absolute safety and reliability. This part is the key mechanical connection to the air supply. Built from a patented aerospace titanium alloy, the lever is resistant to abrasion, material fatigue, and corrosion.
• Balanced poppet system - an aerodynamically pneumatically balanced poppet latch ensures increased airflow and ease of breathing, which means that regardless of the pressure in the tank, the diver will receive the same amount of air during the dive.
• Elliptical exhaust valve - significantly reduces exhalation effort at depth. The oversized, high-flow valve and the shape of the diaphragm inside the second stage make every exhalation easier.
• Seat-saving orifice - a new orifice design significantly extends the life of the rubber seat. Seat wear is the primary cause of leaks in the second stage and a decrease in its performance during use. The first and only adjustable dynamic sealing orifice (patent #5,803,073) is pressure-activated and only contacts the rubber seat when the regulator is in use. This orifice is made of corrosion-resistant titanium or, in the case of the M1, stainless steel.