22x24_1/4x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack Monterey Neem Oil The AS-1 CO2 Alarm Station

The AS-1 CO2 Alarm Station is an audio/visual alarm to be mounted inside or outside the room to be monitored

and digging in the yard

5’ flowering coverage at 20” height

and essential microelements

22x24_1/4x1 MERV 12 Plus Carbon AC Furnace Filters 6 Pack Monterey Neem Oil The AS-1 CO2 Alarm StationNordic 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