18x25x1 Pleated MERV 13 Air Filters 3 Pack Nutriants Certifications: ETL/FCC

Certifications:                                                                  ETL/FCC

Combine with blue-light treatments in the 400-500nm spectrum to improve anthocyanin production

Add 12 ml per gallon of water once per week or with every feeding

2 x CR2032 batteries

18x25x1 Pleated MERV 13 Air Filters 3 Pack Nutriants Certifications: ETL/FCCNordic 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