23_1/4x29_1/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack botanicare 8 x Matrix Circulator |

8 x Matrix Circulator | 2 1/4"

Extra-big chunks of perlite provide the best drainage for superior root aeration

100% soluble product derived from urea phosphate

It can be fully or partially inserted into your duct work using the rubber rings to hold itself in place

The Uvonair 1000 Junior attacks and neutralizes odors at the source

23_1/4x29_1/4x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack botanicare 8 x Matrix Circulator |Nordic 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