12x20x1 Pleated MERV 8 Air Filters 12 Pack controllers this tray brings added value

this tray brings added value to a 72 cell standard insert

• Decrease rooting time of new cuttings

• Contains humic acids for increased metabolic rates

Remote Control – The included Model A77 remote control measures relative humidity at canopy height for optimum control of your grow environment (upgrade options available)

Unlike glyphosate-based products like Roundup

12x20x1 Pleated MERV 8 Air Filters 12 Pack controllers this tray brings added valueNordic Pure MERV 8 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 8 furnace filters are comparable to HVAC filters with the rating of MPR 800. While different companies use different scales to measure the air filters