17x27x1 Exact MERV 7 AC Furnace Filters 6 Pack spl_ps These can be hung throughout

These can be hung throughout the growing area to provide safe areas to hatch or move out in search of prey once released

The RootBuilder II container system has many holes with downward facing protrusions all around the container

Higher luminosity levels per square inch

Tough metal handle

preservatives

17x27x1 Exact MERV 7 AC Furnace Filters 6 Pack spl_ps These can be hung throughoutNordic 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