1 x 1ml 510 Threaded Cartridges

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Replacement Oil Cartridges to fit 510 Batteries

These are empty replacement cartridges for 510 threaded batteries to be filled yourself. Our special design ensures the cartridge is leak proof design with a superior quality tip cover protector, these are the perfect replacement cartridges for your pen with 510 fitment.


  • 1 x Single Cartridge
  • 510 Fitment Gold Threaded Connection (will fit O.Pen, Medi Pen, Harmony etc.)
  • 1.0ml Capacity
  • Removable Gold Tip Protector
  • Gold thread and Gold component for leak proof and added quality 


Any questions please ask!