13x21_3/4x1 Exact MERV 13 AC Furnace Filters 6 Pack Lamps -Applying to seedlings before planting

-Applying to seedlings before planting and watch them grow into healthy

fit the Circulator into the center holes

Its powerful structure provides a maximum amount of friction

It can be used in hydroponic systems as simple as manually irrigated containers

176 x FloraCap® 2

13x21_3/4x1 Exact MERV 13 AC Furnace Filters 6 Pack Lamps -Applying to seedlings before plantingNordic 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