20x20x4 (3 5/8) Pleated MERV 8 Air Filters 2 Pack Sea Green Hydro Set the desired shutdown temperature

Set the desired shutdown temperature and the off time before bringing the lights back on

Nordic Pure 16x20x4 Plus Carbon Air Filters MERV 12 are made of a dual material where the MERV rated material has been fused together with a carbon layer

Gypsy Moths

5" X 20'' SF-4520-SP Replacement Spun Sediment Filter for EX600-T

20x20x4 (3 5/8) Pleated MERV 8 Air Filters 2 Pack Sea Green Hydro Set the desired shutdown temperatureImportant 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