Premium non-woven cloth material provides superior filtration. Multi-layered fabrication ensures mess-free usage, does not burst open or tear easily. Fits most common central vacuum system. See common model numbers below. 3 Tear-Resistant bags. Won't rip open during install, use, and removal. Premium non-woven cloth material provides superior filtration. Designed to fit and compatible with central vac systems and manufacture part numbers: Electrolux TypeK, 110025, 110056, 110360, 391, 44186, Vacuflo200 bag 6528, Filter Aire 90610, Eureka 90610, Eureka 54585, 026VS-110360, Type 210, 50500 (35-20001), 108-34644 system with 060115-1 type bag. BU160, 165 BU165, PU300A, all Powerline Central Vac Systems, V165, 167 Condo, 166, 167, 167C, 167S, 168, 168C, 169, 169C. Eureka CVS5000, Eureka CVS6000,Eureka CVS7000, Boss, CV107H, CV137H, CV825, CV920, CV1001, CV1004, CV1601, CV1801, CV1804, CV1810, CV1004B, CV2104B, CV2301, CV3120B, CV3120C, CVS4000, CV550QA, CV-Mini - CV3120F CV5500 - CV3121H, CV6500i - CV3291L. 110360, 110025, 110056, 391, 44186, Vacuflo200 (bag 6528), Filter Aire 90610, Eureka 54585, Electrolux TypeK, 026VS-110360 VacSite , Type 210, etc. ** Brand names and models are used to indicate compatibility. Brands are registered trademarks of the respective owners.