14_1/2x19x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack 9 CFM Full Spectrum - 3000k/5000/660nm

Full Spectrum - 3000k/5000/660nm

dolomite lime (pH control)

the power and effectiveness of chemical fertilizers with

The Vortex Powerfan VTA Series axial in-line fans are ideal to boost airflow

This product can be used in both the vegetative and flowering stages

14_1/2x19x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack 9 CFM Full Spectrum - 3000k/5000/660nmNordic Pure Custom MERV 10 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