Sits on top of my cup. I have this one. Put filter on cup, grinds in filter, put the two under the Keruig and hit the 8oz button. 3 mintues later, dump the grinds, wash the filter (I run thru dishwasher a few times/week) and that is it.
https://ii.worldmarket.com/fcgi-bin...ket/source/69096_XXX_v1.tif&wid=2000&cvt=jpeg