Feature: 1. Stainless Steel and Aluminum Alloy Construction: Crafted from premium stainless steel and aluminum alloy materials, this CO2 refilling adapter is durable, reliable, and designed to prevent the quick refilling adapter from escaping large water tanks, ensuring enhanced safety and reliability. 2. Pressure Gauge for Accurate Monitoring: Equipped with a pressure gauge, this soda refill quick adapter clearly displays pressure values to ensure they do not exceed the pressure specifications of the receiving tank. The threaded connection of large CO2 tanks must comply with the CGA320 US standard when refilled. 3. Versatile Compatibility: This filling adapter is suitable for CO2 steel bottle systems and can replace for terra, for duo, for art models. Designed to refill small CO2 tanks from larger CO2 tanks, the threaded connection of the larger tank must be the US standard CGA320. 4. Easy Installation Process: With a simple installation process that only requires a few easy steps, your CO2 soda maker can use this quick adapter without hassle. 5. Enhanced Soda Water Refilling Experience: With the CO2 refilling adapter for soda water, you can embark on a journey of making your own soda water. You may find that your original soda water tank is insufficient for your needs in daily life, especially when hosting parties, traveling, or having family gatherings. This soda bottle refilling adapter will alleviate your concerns and enhance your soda water experience. Specification: Item Type: CO2 Refilling Adapter with Pressure Gauge Material: Stainless Steel, Aluminum Alloy Weight: Approx. 115.00g/4.06oz. Package List: 1 x CO2 Refilling Adapter 2 x O Ring 3 x Washer