17_1/8x34_7/8x1 MERV 7 AC Furnace Filters 6 Pack Grow Strong This concentrated formulation is easy

This concentrated formulation is easy to mix and comes with multiple mix rates for control of different types of weeds

mycorrhizae build a microbial system in and on plant roots which greatly enhance water and nutrient uptake

Produces ozone using ultra violet light bulb

it is particularly effective when blended with Roots Organics Uprising Grow for a plant’s vegetative growth phase and with Roots Organics Uprising Bloom for the bloom phase

Effective in soil or hydroponics

17_1/8x34_7/8x1 MERV 7 AC Furnace Filters 6 Pack Grow Strong This concentrated formulation is easyNordic Pure MERV 7 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 and other contaminants are removed. MERV 7 furnace filters are comparable to HVAC filters with the rating of MPR 600. While different companies use different scales to measure the air filters