17x29x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack pots the WD-1 must detect water

the WD-1 must detect water within a adjustable delay time

pet and people friendly product that penetrates the body of target pests living in the soil

including fruits and vegetables

magnesium (needed for photosynthesis) and fortified with sea kelp

Available in 10 sizes

17x29x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack pots the WD-1 must detect waterNordic Pure Custom MERV 8 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