20x28x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack garden-accessories Char Coir loose coco coir

Char Coir loose coco coir is a professional grade growing medium made from 100% coconut fiber

Set sizes available: 8

Proper heat and stagnant air exhausting is important to your indoors gardens success

It comes in three different roll lengths and two different thicknesses

and adult forms of soft-bodied insects

20x28x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack garden-accessories Char Coir loose coco coirNordic 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