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Operates with a high frequency
For use in 315w CMH fixtures
and lowering KIND Base which limits the amount of nitrogen available without compromising trace minerals or magnesium
pythium and rhizoctonia
HI11310 glass body refillable pH electrode with temperature sensor
16x27x1 MERV 13 AC Furnace Filters 6 Pack Cleaning Products Operates with a high frequencyNordic 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
