Lennox X4138 Healthy Climate HEPA-40/60 Carbon Pre-Filter

Three-Stage Filtration Process:

1. Pre-filter - an inexpensive pre-filter to remove larger particulates from the air. This is important to prolong the life of the HEPA filter. Rated MERV 6. Estimate life - 12 months.
2. HEPA - removes 99.97% of particulates down to 0.3 micron. Estimate life 2-5 years.
3. Carbon - 1/2 in. (13 mm) thick carbon filter for removing chemicals and odors from the air. Replace filter when it no longer seems to capture odors, or once every 3 months. Optional carbon canister can be used in place of the carbon filter. Estimated life of the carbon canister is 6 months.

We maintain the lowest price on the web for this item! If you find a legitimately lower advertised price on this item (including S&H), Click Here to contact our Sales Department so we can beat the price.