28x34x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack spl-athena saving you money on utilities

saving you money on utilities and costly maintenance

we have determined that the best results with these biologically active media will be obtained by a smart combination of mineral and organic nutrients

Choose from three models

moisture and temperature

making it an excellent choice for a variety of applications as well as a superior bloom formula for all fruiting and flowering plants

28x34x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack spl-athena saving you money on utilitiesNordic 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