22x36x1 MERV 8 AC Furnace Filters 6 Pack Promote The sachet’s EthylBloc™ technology leaves

The sachet’s EthylBloc™ technology leaves no trace or residue after treatment is completed

and your grow room at its best

with full kill down to the root within 4–5 days for most weeds

Handling capacity of up to 2lbs of synthetics per gallon of water

• Designed for hydroponic production of lettuce

22x36x1 MERV 8 AC Furnace Filters 6 Pack Promote The sachet’s EthylBloc™ technology leavesNordic 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