15x18x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack pumps-and-irrigation-supplies for larger than 10' x

for larger than 10' x 10' areas

as some are attractants

It saves time and makes pruning easier by removing sap and debris after each cut

This consistency is due to the sheer complexity of our nutrient blends

15x18x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack pumps-and-irrigation-supplies for larger than 10' xNordic 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