PREMIUM QUALITY CONTINUOUS INK SUPPLY SYSTEM  100ml Pre-filled CIS system to suit Canon printer models: MP500  (equivalent to appox 50 cartridges which would cost you $1,399.00*) Key Features: Premium grade US UV nano-micron filtered ink (0.1~2 um) UV absorber components for increased print fade life. Silicone tubing and ABS plastic ink reservoirs (UV block) Isobaric equilibrium structure (constant pressure) Silicone seal system (specific to Canon printers) ensures no air breach Model specific inks - profiled to appropriate model release.   IMPORTANT NOTE This product requires the use of the genuine cartridge chips from your Canon cartridges. Our instructions explain how to remove, and affix them to our CISS cartridges. Our manual also covers how to disable the the ink monitoring when the chip indicates empty. This product can also be purchased pre-chipped (we supply and attach the chips) at an extra $20 as per the option below. This product is not sanctioned or manufactured by Canon and users must be aware that the use of any third party cartridges and/or CISS systems may void your printer warranty.   Attention European customers This product is now available directly from our UK store, which may save on postage costs. Feel free to click on the link below to be directed to this product on our UK site Link to MP500 CISS on our UK site – click here