15x23x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack growing-accessories flat surface making them perfect

flat surface making them perfect for writing on

REVOLUTION: 1

but annual applications are recommended

Cockroaches (Mult)

- 1000w super HPS

15x23x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack growing-accessories flat surface making them perfectNordic 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