I can't seem to find my user manual at the moment. I think the pads I need are the 6.1/6.2 series. When I shop I see statements like "Compatible with all Marta's/Marta SL's from model year 2009 onwards, all Louise from model year 2007 onwards and Julie hp", but I'm a little skeptical when I read phrases like "2009 onwards" when it's just barely 2011.