15x9x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack Light Fixture Adult females lay eggs arranged

Adult females lay eggs arranged on leaf hairs

consistently and successfully

Do not refrigerate

and manufacturers recommend preconditioning in a mild acid solution prior to use for proper pH levels at the root zone

15x9x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack Light Fixture Adult females lay eggs arrangedNordic Pure Custom MERV 12 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition