8.75 x 18 x 0.75 Exact Size Air Filter spl_hgc The meter measures the soil

The meter measures the soil conductivity in EC (mS/cm) as well as salt activity (g/L)

Why Automatic

Since there’s no need for spot checks or manual adjustments

Ants (excluding fire and Pharaoh ants)

8.75 x 18 x 0.75 Exact Size Air Filter spl_hgc The meter measures the soilNordic Pure Custom MERV 10 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition