27x27x1 MERV 14 AC Furnace Filters 6 Pack cleanroom It has a double glass

It has a double glass window

Compatible with all major lamp brands

For use as a micronutrient booster or as part of Elements Total Solution

and E144 cloning systems

BPA-free and environmental-friendly felt

27x27x1 MERV 14 AC Furnace Filters 6 Pack cleanroom It has a double glassNordic Pure MERV 14 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 14 furnace filters are comparable to HVAC filters with the rating of MPR 2800.