BUON VINO MINI JET FILTER PAD #3 (FINE); PACKAGE OF 3. BUON VINO FILTERS USE A 3 GRADE PAD SYSTEM. THE #3 FINE PADS (0.5 MICRON) ARE FINISHING AND STERILIZING PADS AND THESE ARE VERY TIGHT PADS THAT REMOVE VERY SMALL PARTICULATE IN YOUR WINE. WE STRONGLY RECOMMEND THAT YOU FILTER WITH THE #2 PAD FIRST BEFORE FILTERING WITH THE #3 PADS AND THAT #3 PADS BE USED TO FILTER YOUR WINE BEFORE BOTTLING. NOTE: WE RECOMMEND THAT POTASSIUM SORBATE BE USED IF YOU WILL BE BOTTLING WINE WITH RESIDUAL SUGAR TO PREVENT THE POSSIBILITY OF UNWANTED SECONDARY FERMENTATION IN THE BOTTLE. EACH PACKAGE COMES WITH 3 PADS. DO NOT MIX FILTER PAD TYPES. ALL FILTER PADS INSERTED INTO THE BUON VINO FILTER MACHINE FOR ANY FILTERING PASS MUST BE OF THE SAME GRADE FOR EFFECTIVE FILTERING, WHEN THE GAUGE PRESSURE READS 10 PSI, THE FILTER PADS SHOULD BE CHANGED. PADS ARE NOT REUSABLE AND SHOULD BE DISCARDED AFTER INITIAL USE.