12x20x1 Pleated MERV 14 Air Filters 3 Pack Grow Light Ballasts Ideal for cultivation with high

Ideal for cultivation with high light intensity requirements

Low ppm/EC and free of contaminants

reliable and versatile: Combo Meter Plus means you will be able to measure more and build a better understanding of your complete growing system

these devices accurately control water variables with programmable hysteresis

Dimension (inch): 65 x 43

12x20x1 Pleated MERV 14 Air Filters 3 Pack Grow Light Ballasts Ideal for cultivation with highNordic 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.