29x35x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack dupe 4 Hours of constant use

4 Hours of constant use

edge laboratory pH meter delivers precision while offering simplicity and versatility in a sleek design

1x 16ft RJ12 Cable

4A @ 120V and 1

The top temperature controller make it convenient to adjust from outside of the water

29x35x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack dupe 4 Hours of constant useNordic 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