CF Clean Fairy vacuum bags used for Windsor Sensor 5300REP Upright Vacuum Paper Bags Professional G1, C2,C3, K2, K3, X, G & C Series, 12 & 15 upright series 20pack Design to fit:Windsor Sensor , Versamatic Plus and SSS Prosense Also fit: Sensor XP12, VSP14, VSP 14, VSP-14, VSP18, VSP 18, VSP-18, X1, X4, X5, XP2, XP-2, XP 2, BS 36, BS36, BS-36, 370 electronic 2-layer of Micro-Lined paper filter vacuum bags 20 bags Note that this is an aftermarket replacement vacuum cleaner bag manufactured by Clean Fairy. Any vacuum cleaner manufacturer brand name is used solely for the purpose of demonstrating compatibility