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Nordic Pure 20x24x4 Pleated Air Filters MERV 10 are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home
This ionization equipment is effective in reducing harmful pollutants and odors by introducing positive and negative ions into the system airflow
Use it in containers with Ocean Forest or Happy Frog Potting Soil to improve drainage
With the Bluelab Guardian Monitor monitoring your crops 24 hours a day and with the ability to set high and low alarms
30x30x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack HPS Nordic Pure 20x24x4 Pleated AirNordic Pure Custom MERV 7 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