Features: Connect your W21.8 standard caliber CO2 cylinder effortlessly with the CGA320 adapter for seamless compatibility. This adapter ensures a secure and leak proof seal, providing peace of mind during usage. Suitable for beverage shop owners, car maintenance technicians, and restaurants, this adapter offer a convenient solution for quick refills. From busy beverage shops to fire suppression systems, this adapter provides a reliable gas supply for uninterrupted operation. Crafted from quality materials, this adapter is built to withstand various applications like stage effects, welding, and gas laboratories. Specifications: Material: Brass Size: As Shown in the Picture Package Includes: 1x Thread Adapter note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.