10x16x1 MERV 13 AC Furnace Filters 12 Pack cococube Monthly Feeding: Use 2–3 tsp

Monthly Feeding: Use 2–3 tsp per gallon of water

Roots Organics Super Phos Bat Guano is fast acting and so powerful it should be used carefully and sparingly

3-second Intervals as Time Delay for Reducing Start-Up Surges

Test clean parts per billion

10x16x1 MERV 13 AC Furnace Filters 12 Pack cococube Monthly Feeding: Use 2–3 tspNordic 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