23_3/4x23_3/4x1Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack Chemicals while still providing the necessary

while still providing the necessary components for microbial activity

The 6in 3 speed Max-Fan™has a built in speed controller Speed 3 334 CFM Speed 2 264 CFM Speed 1 201 CFM Demand the very Best Accept No Imitations

Voltage: 120-277V AC

streptomyces

23_3/4x23_3/4x1Exact MERV 7 Plus Carbon AC Furnace Filters 6 Pack Chemicals while still providing the necessaryNordic Pure Custom MERV 7 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