18x25x1 Pleated MERV 13 Air Filters 3 Pack Grow System/ Trays/ Reservoirs Preservatives have been added to

Preservatives have been added to the medium to reduce the possibility of mold

Easy to assemble or take down within minutes

then if you over water by mistake

allowing your plants to be spaced as the plant canopy requires

and allows for rapid absorption of nutrients

18x25x1 Pleated MERV 13 Air Filters 3 Pack Grow System/ Trays/ Reservoirs Preservatives have been added toNordic 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