Multi-Test Filters are extended surface high efficiency air filters designed to fit the basket framework of the Farr HP without modification.

MT Filters are collapsible replacement cartridges, and are available in four nominal efficiency ranges:
20–30%
45–55%
80–90%
90–95%.

Brand and trade names used for product identification only.
No other use is intended.

Please note, filter frame pictured above is not included.