16x26x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack grow-systems-trays-reservoirs and not genetically modified

and not genetically modified

or as a top dress

1 year warranty

Coating the plant in any oil can suffocate the plant by covering the Stoma openings that the leaf uses to breath

Sodium Bicarbonate (baking soda)

16x26x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack grow-systems-trays-reservoirs and not genetically modifiedNordic 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