I have a kenwood steammop (its yellow andblack).
It has 2 rectangular pads. Its great as you can wash them again and again int he washing machine. If my floors are REALLY dirty and I go through both, I usually just rinse one out under clean hot water, wring it out and put it back on. They get damp anyway from the steam but at least it is clean again. Hope that helps as i have no idea if you can get more replacement pads.