16x18x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack loose coco Alternative to potting soil

Alternative to potting soil

sediment filter

Erwinia (soft rot)

• Solid metal interlocking frame

• Lutein

16x18x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack loose coco Alternative to potting soilNordic 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