17_1/2x17_1/2x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Steel stake Size: Input Frequency: 50/60

Size: Input Frequency: 50/60

This device features an easy-to-use up and down arrow function and a digital display displaying the intensity percentage

All metal gearing parts are heat-treated and the output shaft is supported by heavy-duty bearings

· Sturdy steel housing & aluminum hammertone reflective on all 4 side

4" Site Plug for AeroFlo2 Square Chamber

17_1/2x17_1/2x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Steel stake Size: Input Frequency: 50/60Nordic 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