18x28x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Led easy readings

easy readings

Uses: Indoor

This produces a massive crop

Stainless steel ultraviolet filtration to remove 99

New patented UV booster

18x28x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Led easy readingsNordic 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