For Renaults that do not have a low side port.
Some Renaults (2005 Lagunas and Scenics onwards) do not have a low side port. Instead they only have a high side port but is is situated on the low side of the system. This adapter can be used with the R12 adapter to change the high port into a low port for use with our charging hose. The two adapters must be screwed together and then attatched to the charging hose BEFORE the hose is coupled to the vehicle.