18x24x4 (3 5/8) Pleated MERV 8 Air Filters 1 Pack beneficial microbes Rinse the probe after use

Rinse the probe after use in fresh water and clean once a month to ensure the Commercial Truncheon Nutrient Meter remains accurate

Replaceable sensor lets you reuse meter body many times over

95% reflective European hammertone aluminum

Author Sylvia Bernstein gives you all the tools you need to create your own home aquaponic system for healthy

- Easy to navigate time settings in 1 hour intervals

18x24x4 (3 5/8) Pleated MERV 8 Air Filters 1 Pack beneficial microbes Rinse the probe after useNordic Pure 18x24x4 Pleated Air Filters MERV 8 are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home. Each time air passes through a Nordic Pure pleated furnace filter, lint, household dust, pollen, dust mites, pet dander, bacteria, mold spores and other contaminants are removed. All Nordic Pure pleated air filters are manufactured using a heavy duty, moisture resistant beverage