12_3/4x20_3/4x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Promote Lightweight and easy to hang

Lightweight and easy to hang

High Speed 863 CFM 186 watts

The name "660" references the area of the light spectrum produced by this lamp

oil and water

World's finest European reflective specular aluminum: 99

12_3/4x20_3/4x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack Promote Lightweight and easy to hangNordic 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