Please see this link for the recommended Stainless/Steel version.
Fits: All portafilters on lever models with a 12mm threaded hole. NOTE: some old portafilter handles (shorter style then current one) are 10mm. Some even older ones have a bolt reducer from 8mm to 10mm. If you have one of the older models, here are a couple of options: Handle 10mm Bolt Reducer
