17x27x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack pest-and-disease-control energy efficient

energy efficient

purchase of this cost-saving kit

Electrical:

Contain chitinase

RootShield Plus provides 3 months of preventive control for the following diseases: Phytophthora

17x27x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack pest-and-disease-control energy efficientNordic Pure Custom MERV 10 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