i have both the 106 and 406, and they both share the same aquastop valve, meaning only 16/22 hose will fit the valve. if you look at the corrugated hose that the 106/107 comes with, the grey part is the same size as all the other X06/X07 filter, but the corrugated hose itself narrows down quite a bit after the grey part. u will need a very short length of 16/22 hose and a 16/22 to 12/16 reducer and then 12/16 hose to the pipes.