Don’t panic! Exchange your carbonating cylinder(s) in one of two ways. Don’t let your busy schedule interrupt your sparkle flow. Let us deliver your exchange carbonating cylinder(s) to your home or office. Use the box in which you received the full cylinders. Place your used 60L cylinders into the box, and affix your printed return label to the box. Send them back to us via National delivery service. Want to exchange your empty cylinder in-store? Many of our retail partners sell gas exchanges. Please visit our store locator to find a location near you. Please note a 130L or mini 4 oz cylinder must be exchanged at retail. Competitor cylinders cannot be accepted for exchange.