For PF Series Filter Fans (Type 12 and 3R versions)
Special patent pending fluted filter design increases the time between maintenance by 3X
Allows for greater CFM air flow in dirty environments
Sold in Packs of 5
PFFT Series Replacement Filters
For PTF Series Top Mount Filter Fans
Standard synthetic fiber filter
Sold in Packs of 5
Note: Top mount filter fan units have 4 separate filters per unit - replacement packs (PFFT Series) contain 20 individual filters which will service 5 top mount fan units
