Sturdy brass construction withstands a variety of outdoor environments without rust or corrosion, delivering durable performance for years of use. Leakproof connection with an upgraded QCC1 design and a unique locking mechanism enhances safety and reduces leakage. It is easy to connect and remove. Easy to store and use with 1 lb propane tanks. The threecolor coded dial lets you instantly monitor the remaining propane. Multipurpose compatibility. Designed to work with 1 lb propane tanks, enabling outdoor meals at camping trips, barbecues, outdoor parties, and other activities. Use scenarios Camping trips: power a small camp stove or grill using a 1 lb propane tank with a reliable refill connection. Backyard barbecues or picnics: maintain a steady propane supply for portable grills. Outdoor parties and gatherings: convenient and compatible with standard 1 lb tanks to keep cooking areas running smoothly.