1:1 Refill-Ease™ Cartridge Transfer Connectors reduce material waste and costs by 33%. Everyone has those almost empty impression material cartridges that they do not know what to do with—not enough to take a new impression, but too wasteful to throw out. Connectors let you combine good, unused material from multiple partial cartridges to produce one full cartridge. One connector can transfer an entire batch of cartridges at a time. Available in 1:1, 10:1 and G-style cartridges.