28x28x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack spl_magfan • Great to use prior

• Great to use prior to vinyl or plastic hydroponic set-up to remove residual build-up

and other vegetable crops for hydroponic farming

underside of leaves

If you’ve been looking for a soilless media that you can use with a customized feeding program

and cannot run double-ended (DE) lamps

28x28x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack spl_magfan • Great to use priorNordic 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