La San Marco Single Portafilter Basket - 8gr A genuine-fit single-shot filter basket for La San Marco group heads, sized for an 8 gram dose. The basket has a raised ridge that seats correctly in standard La San Marco single portafilters and accepts a 53 mm tamper base. SPECIFICATIONS Dose capacity: 8 grams Tamper base: 53 mm COMPATIBILITY Fits: La San Marco single portafilters Not compatible with: "Flexa" pod/capsule models INSTALLATION Simple DIY swap, the basket drops into the portafilter with no tools required. PRO TIPS Because of the ridge, this basket only seats correctly in standard (non-Flexa) La San Marco portafilters, forcing it into a Flexa pod portafilter will prevent a proper seal. If shots run fast or channel, check the basket's holes for wear or clogging before assuming the grinder is at fault; baskets do wear out under heavy commercial use.