28x32x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack spl_cg Irrigation delivery to 4 nutrient

Irrigation delivery to 4 nutrient zones

This product is exempt from EPA registration under minimum risk soil drench pesticide under FIFRA section 25(b)

Grow A formulas provide the basis for everything your plants need for vegetative growth

and AWOL listened

28x32x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack spl_cg Irrigation delivery to 4 nutrientNordic 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