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Jet Boil

1.8L Spare Cup


Product Description

Need an extra cup? The 1.8 Liter FluxRing® enabled cup offers cross compatibility and flexibility. For use with SUMO™, MiniMo™, MicroMo™, Flash™, Flash Lite, Zip™, LUNA, PCS and GCS Jetboil systems.​

  • FluxRing® technology makes it possible to heat a conveniently shaped vessel with extremely high efficiency.
  • This patented technology captures the heat of the burner and directs it into the contents of the FluxRing® cup, rather than into the air as waste.​​



  • FluxRing® hard anodized aluminum cooking cup with insulating cozy
  • Drink-through lid with pour spout & strainer
    Bottom cover doubles as a measuring cup and bowl
  • Can pack a 100g or 230g can of fuel and burner base with room to spare, or a complete Sol or Zip system with 100g fuel. Also stows a 450g fuel canister
  • Companion cups are compatible with Jetboil systems only. Do not use with other heat sources, as it will void the warranty??


  • Color: Carbon
  • Height: 8.25"
  • Item Weight: 11.5 oz (325 g)
  • Volume: 60 oz (1.8 Liter)
  • Dimensions: 4.9" x 8.25" (125mm x 210mm)

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