CASCADE Pre-Filter (pair)

2-inch disposable pre-filter - not compatible with electronic cell. Can only be used if you have converted the Cascade White to HEPA-Rx.

Ask about how you can easily convert your system to be a HEPA based system - this will allow you to simply replace the HEPA-Rx once a year and disposable pre-filter once every 4 months as opposed to cleaning the electronic cell and permanent pre-filter every 4 to 6 weeks.