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Air root pruning exposes root tips to dry air
virgin forest material composted with livestock manure
Concentrate needs to be diluted in water and is excellent for inoculating new or existing plants
a residual insecticide that provides up to four weeks of repellency
stable power for high intensity & quality spectrum
21x23_1/2x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack MH Air root pruning exposes rootNordic Pure Custom MERV 12 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
