Flame King's refillable 1 lb cylinders can be refilled at home using the Flame King Propane Refill Adapter and a standard 20 lb propane tank. For finding refill events and locations near you, Flame King recommends visiting refuelyourfun.org, which maintains an updated map of refill stations across North America. Always refill outdoors, away from any ignition sources, and test all connections with soapy water before use.