18x27x1 Exact MERV 14 AC Furnace Filters 6 Pack aaron please refer to performance chart

please refer to performance chart found in the product information tab

Omnivrous Looper Spanworm

The Octo-Flow’s plunger system allows users to easily adjust for the desired flow rate with the turn of a key

Tip over switch shuts off gas source if the unit falls or tips over

18x27x1 Exact MERV 14 AC Furnace Filters 6 Pack aaron please refer to performance chartNordic 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.