17x28x1 Exact MERV 7 AC Furnace Filters 6 Pack Chemicals Pre-installed nylon washers on each

Pre-installed nylon washers on each screw averts scratching equipment

100% of the time

Nordic Pure 16x25x5 Air Bear Replacement MERV 14 air filters measure an actual depth of 4 7/8"

9 cubic foot series vacuum oven is a horizontal chamber structure

17x28x1 Exact MERV 7 AC Furnace Filters 6 Pack Chemicals Pre-installed nylon washers on eachNordic 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