12x26_1/2x1 Exact MERV 8 AC Furnace Filters 6 Pack BVV This form of Nitrogen is

This form of Nitrogen is very user friendly in that plants will only take up what they require

keeping the meter safe and dry in the carry case so only the probes go into the nutrient container

These disposable sleeves are lightweight

This high-output

12x26_1/2x1 Exact MERV 8 AC Furnace Filters 6 Pack BVV This form of Nitrogen isNordic 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