30x30x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack spl_magfan Work Time – 150 min

Work Time – 150 min

just add spores or liquid culture

Par Value (PPF) - 743umol/m²/S

These conditions are optimal and P

Drives the highest light output for maximum plant growth

30x30x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack spl_magfan Work Time – 150 minNordic Pure Custom MERV 13 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