Numatic Primary Filter for ...
$98.99
Product details
Part 604165 is the primary filter listed for the Numatic George canister vacuum. A primary filter is the stage that holds dust back before it can be carried further into the machine.
- Part: 604165, primary filter
- Fits: Numatic George canister vacuum
- Replace when: the filter is torn or loaded with dust that will not shake free
A torn or saturated primary filter lets fine dust travel further into the machine than it should, and once that happens suction drops even though the bag or bin has plenty of capacity left. Checking this filter before assuming the bag needs changing saves a wasted trip for a problem that is not there. Once the media is loaded through its depth rather than only on the surface, tapping or shaking it no longer brings the airflow back, and a replacement is the only thing that will.
Verify your George is the canister version, and compare the shape of the filter you are removing against this one, before ordering. Filter sizes vary by machine model even within the same product name.

