This filtration system is the most highly recommended and most often used system. It is also the best value in our line of filtration systems. It effectively captures 40% of particles at 1.0 micron and larger, which is 11-times the efficiency of standard pleated filters. This filter also resists moisture found in air conditioning systems, and does not support microbial growth on the pleats.
(We recommend a 2" filter change every-other month or 6 times per year. For DIRTY environments or most efficient filtration, you may need to change filters more often...do monthly visual checks for the first few months.)