15x18x1 Exact MERV 13 AC Furnace Filters 6 Pack Liquid & Weight Measuring and Ferrous Sulfate

and Ferrous Sulfate

they are most effective with 2-3 separate releases

9 14 14 12 HGDRRDPH10 Commercial Dirt Pot by RediRoot #10 with handles

The ballast is low frequency ballast designed specifically to run low frequency CMH arc tubes

15x18x1 Exact MERV 13 AC Furnace Filters 6 Pack Liquid & Weight Measuring and Ferrous SulfateNordic 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