17_1/4x17_1/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Trimmers then add ROOTS followed by

then add ROOTS followed by Elite 91 CalMag and adjust the pH to about 5

far-red energy compared to sunlight

Formula is sediment-free and is compatible with mechanical dosing systems (Dosatron)

• When evacuation exceeds 5 minutes these solvents begin to vaporize and then re-condense in the vacuum pump reservoir

long spray range

17_1/4x17_1/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Trimmers then add ROOTS followed byNordic Pure Custom MERV 8 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