The Flanders Pre Pleat Class 1 Series 85855.022020 Standard Capacity Fire Rated Filter is designed as a MERV 8 rated filter to operate in high temperature environments where metal frame filters are unsuitable. These 20" x 20'' x 2" pleated filters are constructed of a 50% efficiency micro-fine fiberglass filtration media bonded to a corrosion-resistant expanded metal backing then pleated into standard or high capacity packs. The packs are sealed within a die-cut frame constructed of a special flame resistant mineral-filled board. The Pre Pleat Class 1 filter is UL 900 Class 1 Listed for flame-resistance.
UL 900 Class 1 Listed
Filters are extremely flame resistant. When clean, air filters do not produce flame or sparks when subjected to a flame exposure test.
With a pleated shape, filters resist collapsing, warping, or bending in normal service.
High Dust Holding Capacity
A high dust holding capacity extends the service life of your filter by allowing it to retain high quantities of dust before replacement.
The filter removes 95-98% of synthetic dust from the airstream.
The filter removes 30-40% of particulate matter and gaseous material from the airstream.