Feature: 1. Constant pressure, airflow output, explosion-proof safety accuracy can reach the industry-leading level, providing you with more safety protection for diving. 2. The main valve switch can completely shut off the air source, and can also adjust the air output required by the individual. 3. With the pressure gauge, you can check the amount of gas in the bottle to provide you with more convenience, with a light-emitting function, still clear at 80 meters underwater. 4. The vacuum chamber can balance the air pressure in the bottle to achieve a constant pressure function. The gas alternates smoothly, breathing is smoother, and gas waste is reduced. 5. External explosion-proof valve, explosion-proof index is more accurate, and easy to replace, bringing you more convenience. 6. Made of stainless steel, aluminum alloy, and silicone material, waterproof, corrosion-resistant, pressure-resistant, and durable. 7. One-way inflatable filter, double filtered gas for breathing pure oxygen. The double-filtered gas is filtered at 0.03 microns at a time. Polymer secondary filtration. 8. Top pressure relief valve, relieve the pressure downward to release the gas in the bottle (after entering the water and biting for inhalation, please pay attention to the pressure relief, and then gently press the pressure relief to drain). 9. Breath bite, after biting, put air into the breathing bottle, improving your diving experience. Specification: Condition: 100% Brand NewItem Type: Scuba ValveMaterial: Aluminum Alloy + Stainless Steel + Silicone.Color: As the Picture Shown Package List: 1 x Scuba Valve Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.