11 3/8x11 3/8x1 Exact MERV 13 AC Furnace Filters 12 Pack Reflective & Greenhouse Films With a balanced air to

With a balanced air to water ratio for water retention and drainage

the valve closes and water flows freely through the line

CDFA organic certified

florists and home gardeners

Expanded size: 4" x 4" x 4"

11 3/8x11 3/8x1 Exact MERV 13 AC Furnace Filters 12 Pack Reflective & Greenhouse Films With a balanced air 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