21 1/2x26x1 Exact MERV 14 AC Furnace Filters 6 Pack harvest-solution Ceramic Metal Halide or CMH

Ceramic Metal Halide or CMH for short (some refer to it as CDM)

shape and bulking properties optimize aeration

Mini-Blocks sit in a tray (flat) without support for easy starting of seeds and cuttings

This light airy blend of peat moss and perlite is the answer to every gardener’s quandary

Root Drench

21 1/2x26x1 Exact MERV 14 AC Furnace Filters 6 Pack harvest-solution Ceramic Metal Halide or CMHNordic 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.