Buon Vino Mini Jet Filter Pad #2. 1.8 Micron Polishing Filtration. These filter pads are fabricated and inspected to meet the requirements of the professional or amateur winemaker. Proper use of these pads will produce a wine with professional brightness and sparkle. For ultra fine clarity, use the No. 3 Pad. Made exclusively for Buon Vino Manufacturing. Set of 3 pads.