The Jetlink Hose allows you to connect an additional burner to any Jetboil or Eureka! multi-burner stove with a Jetlink port, so you don't have to deal with multiple propane canisters when you're trying to get some coffee made to complement your bacon and eggs. Proposition 65 Warning for California Consumers: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.