12x25x1 Pleated MERV 13 Air Filters 12 Pack reflectors and grow lights Color: 100% Black on both

Color: 100% Black on both sides of the bags (All Black)

IP Rating - IP65

This procedure may be used at any time during vegetative or flowering phases if the growing media or irrigation system develops mineral imbalance or unwanted buildup

Set point adjustment (from 0 to 14 pH) and calibration procedures are easily performed with trimmers on the front panel

12x25x1 Pleated MERV 13 Air Filters 12 Pack reflectors and grow lights Color: 100% Black on bothNordic 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