20x25x5 (4 3/8) Lennox X6673_X6675 Replacement Air Filters MERV 15 Plus Carbon 2 Pack water-filtration Made with heavyweight fabric for

Made with heavyweight fabric for extra protection

Nordic Pure 18x18x1 MERV 7 Plus Carbon air filters are made of electrostatically charged synthetic materials with an added flat panel infused with activated charcoal that attracts and capture most airborne particulates in your home

15' ‐ Europe for SPYDR 2x/2p/2i VYPR 2x/2p/2x²

PAR micromles are measured between 400 and 700 nanometers

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement Air Filters MERV 15 Plus Carbon 2 Pack water-filtration Made with heavyweight fabric forImportant Note: Almost ALL furnace filters have a different "actual size" than the nominal size printed on the air conditioner filter. It's best if you measure your air filter for the EXACT size and compare it to our "Actual Size" and then you can be sure your A C air filter fits! With the 4" and 5" air filters there is a wider variance between the nominal and actual size depending on the manufacturer. We also carry 4 7 8 and 5 1 4 inch depth filters,