15x36x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack pots-containers Excess humidity is one of

Excess humidity is one of the fastest ways to lose a crop

Allows air and water to permeate to prevent fungus and diseases

For a flange that does fit fan intake

SAM 400® can be placed in positive and/or negative air pressure environments

Easy to clean because of its bullet shaped glass bulb

15x36x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack pots-containers Excess humidity is one ofNordic 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