17_1/8x34_7/8x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack eligible-for-discount The HPSx lens was developed

The HPSx lens was developed by Method Seven and is made in the USA

LED error indicators

or smooth pavement in feet and inches

Now more than ever

• Canadian Sphagnum peat moss (75-85% by volume)

17_1/8x34_7/8x1 MERV 7 Plus Carbon AC Furnace Filters 6 Pack eligible-for-discount The HPSx lens was developedNordic 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