16_1/2x21_5/8x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack Emitters or it can be added

or it can be added to soil for increased aeration

AzaGuard is an indoor/outdoor

away from direct sunlight

apply to soil when seeding

the oil will evaporate in about 20-30 minutes

16_1/2x21_5/8x1 Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack Emitters or it can be addedNordic 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