La Pavoni Domus Bar Filter Locking Spring - 0DMC056 From  £1.80

Works as great. The original one that came with our machine eventually broke and for years we just held the hot filter in our fingers to knock it clean. Now the filter stays in the portafilter when we knock it clean. It is a little difficult to remove the filter now when washing, but we don't mind.

Item as described. Perfect fit.