Inexpensive pre-filters are used to collect larger particles over 2 microns and prevent them from prematurely blocking the more expensive main filters.
If you are in doubt which system you have then please e-mail us prior to submitting your order.
*Supplied in packs of 2
This pre-filter is designed to fit the Hobarts Fume-X and Alpha 400 fume extraction systems.
***These filters are NOT manufactured by Purex and using them may invalidate your Purex warranty. If your Purex unit is less than 12 months old we would advise you to buy direct from Purex***