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• Improved fabric & zippers—thicker with the best zippers on the market
Super compact box takes up little shelf space
Ideal For Growers Who:
and other potentially harmful liquids and solutions
Nordic Pure 18x24x1 MERV 8 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer
20x25x4 (3 5/8) Pleated Air Filters MERV 14 Plus Carbon 1 Pack Trimmers • Improved fabric & zippers—thickerImportant 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. If you are replacing a 4 3 8 depth 20x25x4 filter