FETCOI 1L DIDEEP E-S400B Diving Tank Equipment Mini Scuba Cylinder Refill by High Pressure Air Pump Refill Adapter for Underwater Diving Breathe Training

In case of emergency, the bottle can be discarded by one button, which is safe and fast.. 5.The backpack is equipped with child and mother buttons. Luminous waterproof pressure gauge, 80 meters under moisture still visible. 4.High stable decompression system, precise decompression and smooth ventilation. 3.360 °rotary valve head can effectively prevent the winding damage of medium pressure pipe and effectively reduce the potential safety hazard. 2.After pressure relief, the bottle body and pressure reducing valve can be disassembled, which can be carried on the aircraft easily. 1.High premium portable backpack belt, not afraid of falling when diving, easy, labor-saving and more safe