Recommended tamper size: 58.40 +0.00 -0.05mm diameter flat face
Each VST filter is serialized with a unique 2-D code used for measurement and QC on the patented VST Digital Filter Imaging System to ensure authenticity and performance. Each unique 2-D code references stored factory measurement, quality reports and image data.
Measurements stored in VST database for all filters, summary quality report included w/each filter.
Each filter is graded and warranted to perform identically to those of similar sizes.
Each genuine VST filter is warranted to meet or exceed published specifications for one year or will be replaced free of charge