10x10x1 Pleated MERV 13 Air Filters 6 Pack spl_spectrumking High phosphorus and potassium content

High phosphorus and potassium content maximizes flower size

Increases germination

and 5 ml per gallon in propagation and cloning machines

Just for hydro gardeners

10x10x1 Pleated MERV 13 Air Filters 6 Pack spl_spectrumking High phosphorus and potassium contentNordic 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