An extended trip far away from home is no place to remember you forgot to replace that worn-out O-ring. But it happens. Be prepared for anything with the Expedition Service kits. They provide comprehensive maintenance and repair solutions for your liquid-fuel stove and pump in places where failure is not an option. Kit Includes: Priming Wick WhisperLite G Jet WhisperLite International G Jet WhisperLite International K Jet WhisperLite International/Universal UG Jet WhisperLite International/Universal UK Jet WhisperLite Universal UC Jet Jet & Cable Tool O-Rings Pump Cup oil Safety Pin Pump Seal Air Tube Fuel Tube and Filter Shaker Needle Fuel Tube Bushing Check Valve Spring Pump Cup Check Valve Ball Check Valve Plug Check Valve Assembly Jet Cleaning Wire