10x28x1 MERV 13 AC Furnace Filters 6 Pack Growing Media Garden - 25-45% of the

Garden - 25-45% of the rates listed above

Single-junction electrode is well-suited for general purpose applications

Where other rockwool brand manufacturers cut all sizes from one batch of wool

Low-cost protection against dust

Do not fertilize before plants have established roots

10x28x1 MERV 13 AC Furnace Filters 6 Pack Growing Media Garden - 25-45% of theNordic 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