58mm Group Coffee Machines Portafilter VST Precision 18 gram Ridgeless Double Filter Basket. Please check the measurement of your current baskets and handles to ensure correct fitting. VST's new filters deliver consistent extraction performance. Experience uniform extractions across all groups for the first time - permanently. The essential espresso filter for those in search of the ultimate cup. Suits most E-61 group heads and any group that measures 60mm in diameter and work with a tamper 58.3mm. Dosing capacity is from 17-19 grams. Recommended for use with the following machines: La Marzocco, Synesso, Nuova Simonelli, Faema, La Cimbali and Rancilio with standard portafilters. Also compatible with  the La Marzocco SWIFT Grinder. Basket Height 24.2mm.