23 1/2x25x1 Exact MERV 13 AC Furnace Filters 6 Pack propagation trays These blue polypropylene shoe covers

These blue polypropylene shoe covers protect against dirt

When spores of NoFly WP come into contact with the insect pest they attach to the body and begin to grow almost immediately

is not conducive to the spread of plant diseases

or disabled

Upgraded Full Spectrum: Idea for all growth stages- from veg to bloom

23 1/2x25x1 Exact MERV 13 AC Furnace Filters 6 Pack propagation trays These blue polypropylene shoe coversNordic 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