Sierra Tru-Vac Dry Filter Cartridge 10 Micron
Dry Vacuums need to breathe! If your filter is "clogged". You will not have sufficient suction at the chair.
When is the last time you checked your filter on your dry vacuum?
"Every 3-6 months you need to change this filter depending on your MODEL"
Replacement filters (RMC-10) for your TRU-VAC dry vacuum system come in 3 packs
Each filter will last 3 months. (Severe duty=6 months)