21x23_1/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Commercial Lighting Color temperature: 3

Color temperature: 3

5mm long and resemble N

High speed: 1350 RPM

Our worms are carefully tended and fed an unparalleled blend of organic compost

Growers choosing PBH/Nature's Media Amendment reduce costs

21x23_1/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Commercial Lighting Color temperature: 3Nordic Pure Custom MERV 8 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