12_3/4x21x1 Exact MERV 8 AC Furnace Filters 6 Pack Plant Support reducing the need for reapplication

reducing the need for reapplication and maintaining protection in outdoor growing environments

20-Inch x 5

Vegetative Cycle: Helps with the generation of new shoots and appendages

Swiss made sensors

nylon mesh to protect the carbon lining

12_3/4x21x1 Exact MERV 8 AC Furnace Filters 6 Pack Plant Support reducing the need for reapplicationNordic 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