17_1/4x23_1/4x1 Exact MERV 10 AC Furnace Filters 6 Pack spl_hw Begin applications before pest populations

Begin applications before pest populations establish for best results

Heavy: 2mL/gallon

They're washable

The WCS-1 water content sensor allows the user to monitor the % of water / nutrients within the growing medium

then the Bluelab Soil pH Meter is just what you need

17_1/4x23_1/4x1 Exact MERV 10 AC Furnace Filters 6 Pack spl_hw Begin applications before pest populationsNordic Pure MERV 10 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, smoke particles, virus carriers, allergens and other contaminants are removed. MERV 10 furnace filters are comparable to HVAC filters with the rating of MPR 900 1000. While different companies