20x20x4 (3 5/8) Pleated Air Filters MERV 14 Plus Carbon 2 Pack pumps-and-irrigation-supplies This distinction means each unit

This distinction means each unit is covered by a 5 year full manufacturer’s warranty

10'' x 40'' Standard Carbon Air Filter

All SolarMax lamps are manufactured in Germany by an ISO certified factory with over 40 years experience in HPS and MH lamp technology

Safe to use:

you can apply this to any part of the plant

20x20x4 (3 5/8) Pleated Air Filters MERV 14 Plus Carbon 2 Pack pumps-and-irrigation-supplies This distinction means each unitImportant 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 20x20x4 filter