Improving your snorkeling experience and changing your perspectives on underwater breathing. Kapitol Reef Aquatics is pleased to introduce the Kapitol Reef Snorkel w/ Kadence Technology, the world's first pressure-regulated snorkel. Envisioned and developed by Mark R. Johnson, M.D., the revolutionary Kapitol Reef Snorkel uniquely regulates exhalation pressure and separates fresh inhalation air from exhaused carbon dioxide. The Kapitol Reef Snorkel is the premier dry snorkel on the market today.