14x18x1 Exact MERV 7 AC Furnace Filters 12 Pack CO2 the optimum enrichment level of

the optimum enrichment level of CO2 for plant growth has been established at 1500 ppmv

Leaf & Stem Rust

Runs TWO 315W CMH Lamps INCLUDED

Low Amperage

Core Coverage: 2*2FT(Commercial Flower)

14x18x1 Exact MERV 7 AC Furnace Filters 12 Pack CO2 the optimum enrichment level ofNordic 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