58mm Group Coffee Machines Portafilter VST Precision 22g Double Filter Basket. Please check the measurements of your current baskets and handles to ensure they fit correctly. Note: This Basket Has An External Locating Ridge Experience uniform extractions across all groups for the first time - permanently. The essential espresso filter for those in search of the ultimate cup. It suits most E-61 group heads and any group that measures 60mm in diameter and works with a 58.3mm tamper. Dosing capacity is from 21-23 grams. Recommended for use with the following machines: La Marzocco, Synesso, and most Nuova Simonelli models using their standard portafilters. Faema, La Cimbali and Rancilio suit, but require a bottomless portafilter. Also compatible with the La Marzocco SWIFT Grinder. Basket Height 28mm. Features: VST's new filters deliver consistent extraction performance. All VST Filters are warranted for ZERO defects! 100% of holes are measured on every filter for minimum and maximum range limits on area and diameter All holes are measured for circularity, placement, square area and blocked holes Filters are matched for total square opening to +/- 5% to ensure identical group-to-group performance (typical filters vary from - 50 to +100%) Specifications: Basket Height: 28mm Dosing Capacity: 21-23mm