13x25x1 MERV 13 AC Furnace Filters 6 Pack cleanroom Based on the famous Hi-Brix

Based on the famous Hi-Brix "Molasses for Plants" formula

and temperature in greenhouses

you’re protected from head-to-toe

Supports Terpene and Resin Production

13x25x1 MERV 13 AC Furnace Filters 6 Pack cleanroom Based on the famous Hi-BrixNordic 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