Countinous ink supply system(ciss) for printers

i want to buy countinous ink supply system for dcp 135 printer any 1 knows about this product in karachi with price and its experiance and also if any 1 knows rates of brother lc 37 series ink cartiges shop in krachi thanks a lot

i am reopening this post after a long time because i have now seen many printers ruining on ciss(continuous ink supply system ) have any body seen there shops that where are these available specially for brother dcp 135 printer.