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PhysioSpec Greenhouse is enriched with a higher amount of blue photons in the 400-500nm range
E-Tube & F-Tube Options – Choose between E-tubes and F-tubes based on your airflow volume and pollution severity for optimized performance
Vital Oxide employs the power of Oxygen (in the form of Chlorine Dioxide) to create a fast-acting
Measures photosynthetically active radiation (PAR) from 400 to 700 nm
see our Greenhouse Poly Measurement Guide
21 1/2x24x1 Exact MERV 12 AC Furnace Filters 6 Pack complete grow kit PhysioSpec Greenhouse is enriched withNordic Pure MERV 12 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, allergens and other contaminants are removed. MERV 12 furnace filters are comparable to HVAC filters with the rating of MPR 1500 1900. While different