1. DURABLE AND RELIABLE: Made of premium stainless steel and aluminum alloy, it is durable and reliable, which can guarantee the safety of diving and ensure the reliable use for a long time.2. LIGHTWEIGHT AND PORTABLE: Lightweight and portable, easy for divers to carry, will not add too much burden, providing convenience for diving activities.3. ACCURATE MANUFACTURING: It is accurately manufactured to ensure a tight and firm connection and effectively prevent air leakage. As a perfect accessory for diving equipment, it can provide a smooth diving experience, so that divers can enjoy the wonderful underwater world.4. PRESSURE GAUGE DESIGN: The pressure gauge is equipped with a luminous function, which ensures that it can be clearly seen in dim environments. The body of the watch is waterproof and not easy to corrode, with high hardness, pressure resistance and durability. The dial design is clearly visible and can accurately identify the pressure value.5. FEATURES: Inflation is intuitive and convenient. Universal scuba adapter allows you to easily introduce large bottles into small ones. Meticulous workmanship of parts to ensure the safety and stability of use.Specification:Item Type: Air Filling Station Refill AdapterMaterial: Stainless Steel, Aluminum AlloyWeight: Approx. 602g / 21.2ozPackage List:1 xAir Filling Station Refill Adapter