17 1/4x26x1 Exact MERV 13 AC Furnace Filters 6 Pack Trimming Shears Excellent PAR output (2100 µmol/s)

Excellent PAR output (2100 µmol/s)

high-temperature silicone potting protects LED and wiring connections from moisture

Unlike synthetic sprays that require EPA registration and careful handling

By flash freezing your sugar leaves

feedings can increase

17 1/4x26x1 Exact MERV 13 AC Furnace Filters 6 Pack Trimming Shears Excellent PAR output (2100 µmol/s)Nordic 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