Most commonly used to connect 3 propane appliances to a propane cylinder. Storage and carry bag included. Hooks 3 appliances to a single 20 lb. cylinder. 30" post allows for lantern to have a larger spread pattern. Can hook up to new and old style cylinders. Three 1" to male throwaway cylinder threads x full flow soft nose P.O.L. 30" and 15" post in one. Plastic caps for thread protection included.