10x28x1 MERV 13 AC Furnace Filters 6 Pack Nutrients and Supplements persimilis PLUS arrives pale and

persimilis PLUS arrives pale and changes to orange/red after predation on pest mites begin

Use Ultra Coir alone or as an amendment to add texture to your soil

- Blue back-lit display

Foliar nutrient spray

Mandarin collar provides enhanced protection

10x28x1 MERV 13 AC Furnace Filters 6 Pack Nutrients and Supplements persimilis PLUS arrives pale andNordic 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