These units are designed for installation in standard air handling units and duct systems
they cannot actively hunt prey until they reach 2nd instar
• Reduce the odor from botanical pesticides and fungicides
this helps take the guess work out of watering
1-year limited warranty – automatic warranty renewal after annual service up to 5 years
20x30x1 Pleated MERV 13 Air Filters 6 Pack grow-system/-trays/-reservoirs These units are designed forNordic Pure MERV 13 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, coughs and sneezes, smog, allergens and other contaminants are removed. MERV 13 furnace filters are comparable to HVAC filters with the rating of MPR 2200