25x32x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack food-&-water-storage Micro™ is formulated to provide

Micro™ is formulated to provide your plants with Nitrogen

PureCrop1 is FIFRA 25(b) exempt so no reporting is required when using this product

The extended root system resulting from the symbiotic relationship allows to enhance water and nutrient uptake

flat surface pH probes typically used in chemical plants for process control

Resin sealed circuit board for high humidity installations

25x32x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack food-&-water-storage Micro™ is formulated to provideNordic 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