12x14x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack spl_hlg Spray application is suggested for

Spray application is suggested for those diseases affecting leaves

We offer a full range of power supply cords as well as adapters to switch from Hydrofarm ballasts to other brands of reflectors

Azomite helps remineralize nutrient-depleted soils

Mycotrol WPO contains the highest spore concentration in a Beauveria bassiana-containing insecticide

The white outer layer helps deflect light and keep temperatures cooler inside of the tubing

12x14x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack spl_hlg Spray application is suggested forNordic Pure Custom MERV 8 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