16x28x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack pest control We take the highest quality

We take the highest quality coir available

accurate and portable

True IP65 protection against water and dust

manganese sulfate and natural volcanic ash

16x28x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack pest control We take the highest qualityNordic Pure Custom MERV 13 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