1st it should be addressed that there are several brands of refill kits on the market and most of these brands are extremely . . . "frail" in every aspect of the term? These other kits either come with watered down ink, are extremely messy, or cause you to do things to your cartridge that are unnecessary and may cause a leakthroughout your printer.    
 

About Refill Kits

OMNIWELL NEW GENERATION REFILL KITS