8x8x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack complete grow kit 5 gallons covers 5-20 acres

5 gallons covers 5-20 acres

tobacco budworms

Ceramic Metal Halide or CMH for short (some refer to it as CDM)

broad spectrum bactericide and fungicide created to protect medical and hemp throughout the growing cycle

Slightly higher PAR for better flower density

8x8x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack complete grow kit 5 gallons covers 5-20 acresNordic 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