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For container gardens
Yield improvements are typically measured at harvest
Ancient Forest is a natural product consisting of 100% pure forest humus
Automation is the key to consistent
13_1/4x13_1/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack additives For container gardensNordic 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