La Marzocco OEM Bottomless Portafilter with Rubber Handle Genuine La Marzocco factory portafilter, chrome-covered brass all the way through, with the embossed lion logo and La Marzocco's signature ergonomic black rubber handle. This is a bottomless (naked) portafilter body only; no basket is included, and it's sized specifically for La Marzocco group heads, so it won't fit other brands. SPECIFICATIONS 83.0mm diameter; chrome-plated brass body; molded rubber handle COMPATIBILITY Fits: La Marzocco group heads only INSTALLATION DIY, drops straight into the group head like your existing portafilter; pair with your basket of choice. PRO TIPS Going bottomless is a real diagnostic upgrade, not just cosmetic, watching the shot stream lets you spot channeling (uneven extraction showing as a thin, fast-running stream from one side of the basket) that a spouted portafilter would hide until it's already in the cup.