13x20x1 Exact MERV 10 AC Furnace Filters 12 Pack grow-systems-trays-reservoirs The sooner you introduce UV

The sooner you introduce UV to your plants

As a dip device

Steel hardened "V"

There are four precision thermal probes included

13x20x1 Exact MERV 10 AC Furnace Filters 12 Pack grow-systems-trays-reservoirs The sooner you introduce UVNordic Pure MERV 10 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, allergens and other contaminants are removed. MERV 10 furnace filters are comparable to HVAC filters with the rating of MPR 900 1000. While different companies