10x33x1 Exact MERV 13 AC Furnace Filters 6 Pack Steel stake • Complete one-bag nutrient solution:

• Complete one-bag nutrient solution: Balanced nutrient proportion promotes robust growth

This premium growing medium expands up to 7 times in volume with water

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simplifying storage and logistics

Includes four 6-foot precision thermal probe that are water resistant

10x33x1 Exact MERV 13 AC Furnace Filters 6 Pack Steel stake • Complete one-bag nutrient solution:Nordic Pure MERV 13 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, smoke particles, virus carriers, coughs and sneezes, smog, allergens and other contaminants are removed. MERV 13 furnace filters are comparable to HVAC filters with the rating of MPR 2200