12x25x1 Pleated MERV 8 Air Filters 24 Pack additives STURDY AND DURABLE – Heavy-duty

STURDY AND DURABLE – Heavy-duty plastic construction will endure through many growing cycles

The high levels of sulfur make this an extremely effective flushing agent

This nutrient system works well in hydroponics

These active beneficial bacteria are both aerobic (oxygen appreciative) and facultative (adaptive to low oxygen)

and for hydroponic systems

12x25x1 Pleated MERV 8 Air Filters 24 Pack additives STURDY AND DURABLE – Heavy-dutyNordic Pure MERV 8 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments. Each time air passes through a Nordic Pure pleated furnace air filter, lint, dust, pollen, bacteria, pet dander, dust mites, mold spores and other contaminants are removed. MERV 8 furnace filters are comparable to HVAC filters with the rating of MPR 800. While different companies use different scales to measure the air filters