Review on Enhance Filtration with EnviroCare Replacement HEPA Vacuum Cleaner Filter for Hoover Foldaway and Turbopower Uprights by Dave Weber

Warning. Not compatible with Hoover Foldaway 3100 that uses filter 43615090 (43615-090). The filter mounting hole is too small. It might work if the manufacturer uses flexible rubber for the mounting surface like the OEM model. Instead, they used hard plastic. It could also leak (as OEM) and cause dust to leak out and pollute your home. It seems that the NWCLASS provider has ethical issues - there have been complaints about this issue dating back to 2010 (now December 2011) and they still haven't changed the compatibility description. That's why I give them a bad rating. NWCLASS - please don't waste our time.