14x27x1 Exact MERV 8 AC Furnace Filters 6 Pack Fertilizer Microporous fabric keeps dust and

Microporous fabric keeps dust and liquids out while allowing air to flow freely

77 EC calibration solution (50 ml bottle)

Ships via Overnight methods on Tuesdays Only

S1 is designed for application exclusively in flowering phase

14x27x1 Exact MERV 8 AC Furnace Filters 6 Pack Fertilizer Microporous fabric keeps dust andNordic 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