17x19x1 Exact MERV 12 AC Furnace Filters 12 Pack plant-care/pest-&-disease-control Proper hydration of ph probes

Proper hydration of ph probes is vital to maintain wick

all bags have rubber-coated zippers

Top stitching to allow for easier filling

Capacity from 2000 m3/h (1180) to 79

Experience healthier plants with fewer signs of stress and burn

17x19x1 Exact MERV 12 AC Furnace Filters 12 Pack plant-care/pest-&-disease-control Proper hydration of ph probesNordic Pure MERV 12 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, allergens and other contaminants are removed. MERV 12 furnace filters are comparable to HVAC filters with the rating of MPR 1500 1900. While different