20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 8 Air Filters 2 Pack lighting-&-electrical-components Nordic Pure 12x24x1 MERV 12

Nordic Pure 12x24x1 MERV 12 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer

Improves photosynthetic efficiency and nutrient usage efficiecy

Most sensors and control modules are connected by using standard RJ12 cable and splitters

This secondary method of killing increases the effectiveness of A

Being one of the only natural and dry flower hardeners

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement MERV 8 Air Filters 2 Pack lighting-&-electrical-components Nordic Pure 12x24x1 MERV 12Important 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,