13x23x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack water-pumps-&-irrigation-supplies 8" High-Output In-Line Duct Fan

8" High-Output In-Line Duct Fan

reducing noise pollution by up to 50%

the pure and natural vegan formulation encourages beneficial microbial activity in the root zone

Citrus root weevils

Works great on tough perennial weeds after a couple of applications

13x23x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack water-pumps-&-irrigation-supplies 8" High-Output In-Line Duct FanNordic 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