• VST’s precision filters deliver consistent extraction performance over a wide range of concentration with reduced sediment
• Designed to extract properly as a ristretto, normale or lungo with minimal or no change in grind setting at a fixed dose
• Filters are matched for total square area to +/- 5% to ensure identical performance
  (typical variances of standard filters range from 50-200% of nominal open square area)
• All VST Filters are WARRANTED for ONE-YEAR and for ZERO DEFECTS
• Holes are fabricated using a new micro-machine and finishing process
• 100% of holes are measured on every filter for min/max range limits on area and diameter to a precision of +/- 20 µm (individual QC report provided with every filter)
• All holes are measured for circularity, placement, square area and blocked holes
• Hole pattern is centered to +/- 1.0 mm and placement is oriented for uniform extraction throughout the entire puck
• Wide outlet angle to prevent filters from clogging, patented anti-wear design ensures uniform performance for life of product
• Improved structural integrity, will withstand deflection from pump cycling without premature fatigue failures (see VST Warranty)
• 58.40mm Tamper Recommened

Compatibility:

Designed to fit most 60mm Portafilters

• 25-g, 22-g & 7-g fits all La Marzocco and Most Synesso and Nuova Simonelli models using their standard portafilters.
• Faema, La Cimbali, Rancilio require a bottomless portafilter.
• 20g, 18-g & 15-g fits most La Marzocco, Synesso, Nuova Simonelli, Faema, La Cimbali, Rancilio with standard portafilters.
• Check height specification (in mm) in PDF document and compare to the depth available in your portafilter.
• 22-g, 20-g and 18-g are compatible with the La Marzocco SWIFT Grinder
  

Note: If you are unsure of portafilter depth compatibility, VST recommends using a bottomless portafilter.