Features: OOTDTY your W21 regular CO2 cylinder easily with the CGA320 adapter for seamless compatibility. This adapter ensures a secure and leak evidence seal, providing peace of mind right through usage. Suitable for beverage store owners, car maintenance technicians, and restaurants, this adapter supply a convenient reply for speedy refills. From busy beverage stores to suppression systems, this adapter provides a reliable gas delivery for uninterrupted operation. Crafted from quality materials, this adapter is built to face as much as different purposes like point effects, welding, and fuel laboratories. Specifications: Material: Brass Size: As Shown in the Picture Package Includes: 1x Thread Adapter Note: Please allow 1-2cm errors because of manual measurement. Due to the adaptation between different monitors, the image will not reflect the actual coloration of the item.