18x27x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack hand-tools 1 °F Temperature Accuracy (@25°C/77°F)

1 °F Temperature Accuracy (@25°C/77°F) ±0

Auto-dimming when temperature exceeds set points

Mix 1 ml/L (4 ml/gallon) of water for every watering through the flowering cycle

Use it for trees and shrubs

18x27x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack hand-tools 1 °F Temperature Accuracy (@25°C/77°F)Nordic 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.