18x22x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack Emitters Though listed on the label

Though listed on the label for use on tomatoes there maybe an increased risk of phytotoxicity

Helps prevent stress in plants caused by either irregular watering or overwatering

It is best used when the larvae are actively feeding but before the plants are heavily damaged

Reliable passive cooling designed with ultra-thick aluminum heatsink

Fine tuned light spectrum for horticultural applications

18x22x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack Emitters Though listed on the labelNordic Pure pleated AC air filters are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home or office. Each time air passes through a Nordic Pure pleated furnace filter, lint, household dust, pollen, dust mites, pet dander, baking flour, mold spores and other contaminants are removed. Our filter media prevents the growth of bacteria or mold, resulting in a much healthier living space.