16x36x1 MERV 13 AC Furnace Filters 6 Pack shredder G-Rex is developed for use

G-Rex is developed for use with Cutting Edge Solutions Fertilizers

It combines premium-grade specular aluminum with energy-efficient/high-output T5 bulbs and puts out double the light energy of normal fluorescent systems

CF (4-60) and ppm scales (TDS and 700 scale)

emit a bluish purple light that is ideal for the veg cycle

16x36x1 MERV 13 AC Furnace Filters 6 Pack shredder G-Rex is developed for useNordic 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