18_1/4x22x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack refurbished-products 1 pH/1°C/1°F

1 pH/1°C/1°F

compact design provides easy storage and transportation

One case of (8) GC 30 makes 240 gallons of full-strength disinfection solution (100 ppm)

- Reduce the need for fungicides

Includes 6 inch duct for incoming air

18_1/4x22x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack refurbished-products 1 pH/1°C/1°FNordic 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