20x28x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack microbial fertilizer 3100K (598 µmol/s) or 4200K

3100K (598 µmol/s) or 4200K (562 µmol/s)

which means its built to last but wont harm or scratch your tumbler

Direct 220V plug in

Low Battery Indicator

20x28x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack microbial fertilizer 3100K (598 µmol/s) or 4200KNordic Pure Custom MERV 14 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