Cavagna Automatic Changeover Propane Gas Regulator Kit – Effortless Gas Supply Management The Cavagna Automatic Changeover Propane Gas Regulator Kit (21mm Clip-On) is the ideal solution for ensuring a continuous and safe gas supply. Designed for propane cylinders with 21mm clip-on connections, this kit automatically switches between cylinders when one runs out, providing seamless and uninterrupted gas flow. This comprehensive kit includes an automatic changeover regulator, two high-quality 20-inch pigtails crafted from BS-compliant high-pressure hose, and a mounting bracket for secure installation. Each pigtail is equipped with excess flow and non-return valves to enhance safety and prevent gas leaks, while the regulator provides c