16x28x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack additives 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

tried and true

Mark one branch that you wish to treat

and serve as natural breeding grounds for flies and other unwanted insects

16x28x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack additives Rinse the probe after useNordic 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