Actually you want to check, but I think this is what you need, 15mm to 3/4"
Check if the hose you have from samsung fits onto the washing machine or dishwasher water supply
http://www.screwfix.com/p/washing-machine-valve-without-check-valve-15mm-x/51231
yes that will probably do it I think
one side is bigger than the other right?
or I was thinking this
http://www.screwfix.com/p/reducing-coupler-fitting-15mm-x-22mm/68500
+ 15mm iso valve