8x28x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack dupe The smooth interior also aids

The smooth interior also aids in noise reduction

larvae and eggs on aphids (Aphidoidea)

It offers full UV protection and crisp contrast

• UL Approved

up to 4-6x stronger than Advanced Nutrients

8x28x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack dupe The smooth interior also aidsNordic 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