16x20x4 (3 5/8) Pleated MERV 7 Air Filters 2 Pack chillers-heaters-and-purification high-quality plastic with a special

high-quality plastic with a special UV-resistant composition

and aquaponics applications

Boot covers are designed with a non-skid sole to help reduce the risk of slips or falls

Integra Boost® immediately responds and expertly adapts to the environment you place it in—either releasing or absorbing moisture as needed to ensure the optimal humidity and an ideal environment

easily switch between Celsius and Fahrenheit readouts

16x20x4 (3 5/8) Pleated MERV 7 Air Filters 2 Pack chillers-heaters-and-purification high-quality plastic with a specialImportant 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 16x20x4 filter