S400+ Aviation Aluminum Scuba Diving Valve Set + Snorkeling Refill Adapter Dive Equiment
- Constant pressure accuracy, airflow output, explosion safety accuracy. Can reach the industry leading level.
- Master valve switch: control the outflow of gas switch.
- One-way air filter: double filter gas breathing pure .
- Pressure gauge: check the volume of gas in the bottle.
- Explosion-proof valve: external explosion-proof valve, safer to use.
