The Canon PIXMA G3660 takes the Canon GI61 ink Bottles.  You can choose from compatible bottles or genuine Canon cartridges from Affordable Ink.  Compatible GI61 bottles are significantly cheaper than genuine Canon bottles.

The ink capacity of a compatible and a genuine ink bottle are the same. In our experience there is no noticeable difference in print quality between a genuine and a compatible cartridge.

Genuine ink bottles are reliable and are likely to work every time.  Compatible ink bottles are a much cheaper alternative to genuine and we guarantee the compatible G61 ink bottles will work in your Canon PIXMA G3660 printer or we will  refund your purchase price in full.