18x28x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Grow Light Reflectors 1 pH pH Accuracy ±0

1 pH pH Accuracy ±0

natural insecticide that integrates easily into a state-compliant Integrated Pest Management (IPM) program

Intelligent lamp detection

and a decontaminant which dissipates rapidly

Fits ONLY 6 x 10 in

18x28x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Grow Light Reflectors 1 pH pH Accuracy ±0Nordic 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