12_3/4x21x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Electrical Components Integrated Temperature Sensor– Built in

Integrated Temperature Sensor– Built in temperature sensor allows for temperature compensated measurements

Features a super tough

It is still a direct drive fan

- Open Circuit Protection

Carbon Final Filtration metering

12_3/4x21x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack Electrical Components Integrated Temperature Sensor– Built inNordic 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