20x24x2 Pleated MERV 13 Air Filters 12 Pack Amendment Perlite #3 can be used

Perlite #3 can be used as a stand-alone medium in drip systems or as a mix-in element with other growth mediums

Foliar Application: Use at a rate of 5 ml per gallon of finished foliar solution

5 fl oz/gallon of water (25-100 ml/gallon)

Power Factor: >90%

20x24x2 Pleated MERV 13 Air Filters 12 Pack Amendment Perlite #3 can be usedNordic 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