[Capacity] 1L large-capacity diving cylinder, constant pressure breathing is more stable and lasting.

[High-pressure gas storage tank] Choose aviation aluminum material, professional organization inspection and certification, the surface adopts plastic spraying process, high pressure resistance, impact resistance, seawater corrosion resistance.

[Pressure gauge] With luminous function, it is still clear at 30 meters underwater, stainless steel material is waterproof, corrosion-resistant, high hardness, and durable under pressure.

[Secondary pressure reducing valve] The surface is hard-oxidized and hardened, which is resistant to stamping, corrosion, and lasting stability. (Set B and Set D are Metal Secondary Valves, Set C and Set F are Plastic Secondary Valves.)

[360° rotating head] 360° free rotation, suitable for any posture underwater, free diving with smooth breathing.

[Total gas valve switch] This gas valve can completely shut off the gas source, so that it does not leak in storage, and can adjust the gas flow required by each person.