6x20x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack food-&-water-storage Roots Organics Ancient Amber is

Roots Organics Ancient Amber is derived from leonardite

and extremely short intermodal spacing

Stainless steel stabilizing foot

Without clear directions

This dye-free formula works well for salad greens and vegetative plants

6x20x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack food-&-water-storage Roots Organics Ancient Amber isNordic 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