6x10x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack New-releases Nordic Pure 20x25x5 Lennox X6673_X6675

Nordic Pure 20x25x5 Lennox X6673_X6675 Replacement Pure Carbon Pleated Odor Reduction MERV 8 rated air filters are what is considered the traditional 5” filter at an actual 4 3/8”

To 1 & 3/16 in

so it is best to be added to solution prior to other nutrients - or diluted before adding to a nutrient solution

Sold in cases of 3 for 3lb

5 GPH per stake

6x10x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack New-releases Nordic Pure 20x25x5 Lennox X6673_X6675Nordic 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