20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 15 Plus Carbon 4 Pack ac-dehumidification-humidification You can set it to

You can set it to spray only in the dark (low light) or during the day (when lights are normally on)

derived from a Chrysanthemum flower

4 different setup options to optimize your garden layout

40 x PotPro™ | 5 Gallon

Temp and RH are shown on screen at each Zoom Level

20x20x5 (4 3/8) Honeywell/Lennox Replacement Furnace Filters MERV 15 Plus Carbon 4 Pack ac-dehumidification-humidification You can set it toImportant 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. We also carry 4 7 8 and 5 1 4 inch depth filters,