After the price of the original cartridge rose continuously unfortunately, I looked around for alternatives. This one really seems to be a. Instead of almost EUR 15 per piece, here costs a filter cartridge 6.50 EUR. The main difference in the price, but probably not in the performance. For our Jura Impressa C50 I can recommend these filter cartridges. So to the original cartridges if necessary to go back in the price down, we stay in this variant. Nothing to complain about - a perfect match.