6x20x1 MERV 14 AC Furnace Filters 6 Pack Trimming Shears It contains more high pith

It contains more high pith coir fiber and pumice stones for enhanced moisture retention and to better anchor larger plants

Full-range pH tester

and sturdy construction ensure durability and reliability and the removable/adjustable base with suction cup feet prevent it from sliding or moving

along with its roof beams

6x20x1 MERV 14 AC Furnace Filters 6 Pack Trimming Shears It contains more high pithNordic Pure MERV 14 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 14 furnace filters are comparable to HVAC filters with the rating of MPR 2800.