20x34x1 MERV 12 AC Furnace Filters 6 Pack dupe Monterey Disease Control is a

Monterey Disease Control is a preventative biofungicide/bactericide that uses the naturally occurring beneficial bacterium Bacillus amyloliquefaciens strain D747 as its active ingredient

and kelp meal

Built in high pressure cutoff allows for easy use with float valves or faucets

A great organic alternative to clay pellets or rocks

20x34x1 MERV 12 AC Furnace Filters 6 Pack dupe Monterey Disease Control is aNordic 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