17_1/2x21x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Misc Soak seeds for 12 hours

Soak seeds for 12 hours in the Dr

macro and micro minerals

Opening roof top can slide out or lift up to prevent overheating

Up to 4 hours of use on a single charge

lamp failure protection

17_1/2x21x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Misc Soak seeds for 12 hoursNordic 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