20x25x5 (4 3/8) Lennox X6673_X6675 Replacement Air Filters MERV 13 Plus Carbon 2 Pack food-storage water garden or water feature

water garden or water feature

• Nitrate-free

Growers choosing PBH/Nature's Media Amendment reduce costs

pieces snap into desired place for better functionality

Double junction pH electrode with 2m cable (BNC connector)

20x25x5 (4 3/8) Lennox X6673_X6675 Replacement Air Filters MERV 13 Plus Carbon 2 Pack food-storage water garden or water featureImportant 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,