VST precision filter baskets deliver consistent extraction performance. The essential espresso filter for those in search of the ultimate cup.

- 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 Recommended.
- All stocked VST precision filter baskets are ridge-less.