8x28x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack coco • High cation exchange capacity

• High cation exchange capacity (CEC) for optimum nutrient uptake

dehumidifier

This is during the final stages before harvest

a BPA-free catchment tray

8x28x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack coco • High cation exchange capacityNordic 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