Genuine Rocket Espresso bottomless portafilter in chromed brass, made to fit every Rocket machine with the standard 58mm E61 group. With no spouts in the way, the filter basket stays in full view and you watch the extraction from the first drop: channelling, dead spots and uneven distribution show up immediately, so dose, grind and tamping are much easier to correct.
The chromed brass body gives the portafilter the right weight and thermal mass, while the handle keeps the familiar Rocket ergonomics and a comfortable grip. A simple tool that many home baristas end up using every day, both to refine technique and to get a richer, more even crema in the cup.