15x24x1 Exact MERV 8 AC Furnace Filters 6 Pack AIR FILTER BOXES meaning that if you are

meaning that if you are not holding the sensor perfectly perpendicular to the light source

Plants have different needs in terms of their climate

The FloraFlex® Matrix System is a patent-pending first-of-its-kind Top Feeding Wicking System that provides the most even way to deliver water and nutrients to your potted plants

It also provides "Xtra" flexibility

5-year warranty (6 months for Soil pH Probe)

15x24x1 Exact MERV 8 AC Furnace Filters 6 Pack AIR FILTER BOXES meaning that if you areNordic Pure MERV 8 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores and other contaminants are removed. MERV 8 furnace filters are comparable to HVAC filters with the rating of MPR 800. While different companies use different scales to measure the air filters