Here is a simple, mess-free and reliable solution for refilling your Zcorp and ProJet binder cartridges. The system is based on a syphon principle: the binder runs down into a cartridge by the gravity pull.  

Kit contents:

• bottle plug
• 60ml syringe
• long tubing (1m)
• short tubing
• fitting for the cartridges (black is for 1L cartridges, grey is for 300ml)
• latex gloves
• 5 o-rings and an o-ring applicator (Color Kit only)