11_1/2x11_1/2x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack Lighting It can be used as

It can be used as a foliar spray with zero risk of burning

Designed for long-term use and low maintenance

Dolomitic lime

or add it to existing soil

Nordic Pure 10x30x1 MERV 12 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer

11_1/2x11_1/2x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack Lighting It can be used asNordic Pure Custom MERV 7 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