Just a bit of info. I picked up a pair of all in one wiper refills today.
They are a special set made by champion and coded R51.
They are metal guided and are curved to fit the screen contours on the passenger side, a job that crappy Halfords ones don't do! They are also the correct 20inch length. They list application as 145, 146 and 155 as well as Fiat Tempra, Tipo and Lancia Dedra, Delta and Delta HPE. Only prob. is they are a bit more expensive than Halfords own brand at £6.90 for a pair.