17_1/8x34_7/8x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack Hand Tools Root drench preventatively every 7-14

Root drench preventatively every 7-14 days

That's the ExHale 365

OAKTON's new EcoTestr is economical and easy to use

LED Status Indicator

PLEASE SEE MSDS FOR COMPLETE WARNINGS

17_1/8x34_7/8x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack Hand Tools Root drench preventatively every 7-14Nordic Pure Custom MERV 14 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