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Increases plant hardiness and resistance to adverse environmental conditions
Aeration promotes air pruning for better fruit and higher yields
It hydrates and nourishes the flowers for maximum enjoyment
some are best for large commercial facilities and some are best for sea-of-green type cultivation methods
Keep moist with K-L-N solution until adequate roots form
21_1/2x23_5/16x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack hydro-components Increases plant hardiness and resistanceNordic 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
