20x20x4 (3 5/8) Pleated MERV 7 Air Filters 1 Pack Plant Care/Pest & Disease Control 3-in-1 (Temp/Humid/CO2) Sensor: Max 1pc

3-in-1 (Temp/Humid/CO2) Sensor:                                Max 1pc per set

Neptune's Harvest Fish Fertilizer is an organic fish hydrolysate fertilizer derived from a variety of North Atlantic fish freshly sourced from the ocean

Standard Voltage 24 VAC± 10% Voltage

• CO2 exhaust fan shut-off

20x20x4 (3 5/8) Pleated MERV 7 Air Filters 1 Pack Plant Care/Pest & Disease Control 3-in-1 (Temp/Humid/CO2) Sensor: Max 1pcImportant 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