Commercial Vacuum Bags for Windsor Sensor, Sensor XP12, Versamatic Plus, Kenmore 50015 (10 Pk) Fits all Sebo X Series Uprights, including Sebo X1, X2, X4, and X5. Fits Windsor Sensor models S12, S15, SRS12, SRS15, SRS18, Sensor XP Models XP12, XP15, XP18, SRXP12, SRXP15, SRXP18 Kenmore 50015 Style W Vacuum Cleaner Bags. For Kenmore upright vacuum cleaners that use bag 50015 or 20-50015. Allstar Javelin 12 Series Upright Commercial vacuums 100% PREMIUM ALLERGEN FILTRATION - Proven to trap DUST, POLLEN, ALLERGENS, DUST MITE DEBRIS