11_1/2x11_1/2x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack spl_hf and tray which incorporates an

and tray which incorporates an adjustable drainage system which allows water to drain and air to circulate promoting healthy more productive plants

RAW Enzymes are soluble and compatible with all nutrient programs

Chlorophyll deficiency in the bloom stage causes fading leaves right when flowers are putting on mass at a rapid rate

An attached hood helps provide head

Greenhouse Door

11_1/2x11_1/2x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack spl_hf and tray which incorporates anNordic 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