9x27x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack lighting_accessories No fans zero noise

No fans zero noise

Once brewed

• The Neutralizer Essential Oil cartridge (x1) - 6 week lifespan at 24hr use

Horticulture grade hydroponic clay pebbles made of all-natural clay is used extensively in hydroponic grow systems and grow mixes

9x27x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack lighting_accessories No fans zero noiseNordic 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